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you minus the bigger side by the smaller side
example: a 6 in side and a 2 in side. you do 6-2=4. the missing side is 4 in
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Can you transform sine functions into cosine functions?
If you know the measure of one angle, and the length of one side of a triangle, you can find the measures of the other sides and angles. From there, you can find the values of the other trig functions. cos (x) = sin (90-x) in degrees there are other identities such as cos^2+sin^2=1, so cos^2=1-sin^2
What is the law of cosines?
It is a mathematical equation that allows you to "solve" a triangle (find all length and angle values), if you know 2 sides and an included angle, or all three sides. It doesn't have to be a right triangle. You can find the cosine on a calculator easily.c2 = a2 + b2- 2ab cos CC = included anglec = side opposite angle C (c)a = side ab = side bThe cosine law relates the length of the sides of a triangle to one of the angles in the triangle. If the triangle is labelled with vertices A, B, C with usual notation for edges (ie a is the side opposite the vertex A, so not touching A) and if x is the angle at vertex C then the cosine law says (c^2)=(a^2)+(b^2)-2abcos(x)
Find the length of the side opposite angle a?
It depends on what else you know. If it is a non-right triangle, and you only know angle a, it is impossible to fing side A (the side opposite an angle usually has the same letter, but capitalized). If you know the other two sides, then I would use the law of cosines: For a triangle with sides A B C A = √(B2+C2-(2*B*C*(cos (a)))) If you know another angle and one side, I would use the law sines: A/(sin a) = B/(sin b) therefore, A = (sin a) * B/(sin b) If it is a right triangle, and you know another side, than your job is even easier: If you know the hypotenuse (side C), than: A = C *(sin a) If you know the adjacent side (side B), than: A = B * (tan a)
Which of these angles is coterminal with 32?
-5pi/2
What do all the angles in a obtuse triangle if the obtuse angle is 120 Degrees?
The other 2 angles will be acute and the 3 angles altogether will add up to 180 degrees
How do you find values for the third side of a triangle?
Perimeter -2 known sides = 3rd side 180 -2 known angles = 3rd angle
How do you find the perpendicular distance in a triangle?
The answer will depend on what information you do have.If you know two sides and the included angle you can find the area. Then perpendicular distance = 2*Area/Base.If you know all three sides then you can use the cosine rule to find one of the angles. Then, you have two sides and the included angle and can proceed as above. Actually, you can find the area directly from the three sides.If you know one side and two angles, you effectively know one side and all three angles. You can use the sine rule to find one of the other sides and then you have two sides and an included angle and so can proceed as before.There are more complicated solutions where other measures are known.The answer will depend on what information you do have.If you know two sides and the included angle you can find the area. Then perpendicular distance = 2*Area/Base.If you know all three sides then you can use the cosine rule to find one of the angles. Then, you have two sides and the included angle and can proceed as above. Actually, you can find the area directly from the three sides.If you know one side and two angles, you effectively know one side and all three angles. You can use the sine rule to find one of the other sides and then you have two sides and an included angle and so can proceed as before.There are more complicated solutions where other measures are known.The answer will depend on what information you do have.If you know two sides and the included angle you can find the area. Then perpendicular distance = 2*Area/Base.If you know all three sides then you can use the cosine rule to find one of the angles. Then, you have two sides and the included angle and can proceed as above. Actually, you can find the area directly from the three sides.If you know one side and two angles, you effectively know one side and all three angles. You can use the sine rule to find one of the other sides and then you have two sides and an included angle and so can proceed as before.There are more complicated solutions where other measures are known.The answer will depend on what information you do have.If you know two sides and the included angle you can find the area. Then perpendicular distance = 2*Area/Base.If you know all three sides then you can use the cosine rule to find one of the angles. Then, you have two sides and the included angle and can proceed as above. Actually, you can find the area directly from the three sides.If you know one side and two angles, you effectively know one side and all three angles. You can use the sine rule to find one of the other sides and then you have two sides and an included angle and so can proceed as before.There are more complicated solutions where other measures are known.
Are triangles congruent if so how do you know?
ASA stands for "angle, side, angle" and means that we have two triangles where we know two angles and the included side are equal. If two angles and the included side of one triangle are equal to the corresponding angles and side of another triangle, the triangles are congruent.
How do you use the law of sines?
The Law of Sines can be used to find unknown parts (a side or angle) of a triangle. For example if you know 2 angles and a side, or if you know 2 sides and 1 angle (depending on how they are oriented). Visit the Maths Is Fun site (link posted below) for a more graphical explanation.
How do you find the area of a triangle if the length of two sides is unknown?
It depends on what IS known. If you know one side and the perpendicular distance from that side to the opposite vertex then it is 1/2*side*perp distance. If you know two angles (and so all three) you can use the sine rule to calculate both the missing sides.
How do you solve a triangle with only 2 sides known and related angles?
In a triangle with angles A, B,C and sides a, b, c with side a opposite angle A, side b opposite angle B, and side c opposite angle C: If you know 2 of the angles (b and c), the third (a) can be calculated as the sum of the angles must be 180°: a = 180° - (b + c) If you know 2 of the sides (b and c) and the angle between them (A), the third side (a) opposite the angle A can be calculated using the cosine rule: a^2 = b^2 + c^2 - 2 b c cos A If you know one side (a) and the angle opposite it (A), then if a side (b) is known, the angle opposite it (B) can be calculated, or if an angle (C) is known the side (c) opposite it can be calculated, using the sine rule: (sin A)/a = (sin B)/b = (sin C)/c = 1/(2R) where R is the radius of the circumcircle of the triangle.
2 parallel side 2 right angles does that describe a pentegon?
no, pentagons don't have parallel sides or right angles.
Why you use 0.433 for area of equilateral triangle?
there are multiple ways you can do this 1) draw a line down the middle of the triangle.use a^2 +b^2 = c^2. you know c=the side of the triangle and a=half the side of the triangle. then you can find b. afterwards you can do (1/2)bh. 2) you can use trig. to solve this. (1/2)bc(sin a). you know the length of the sides (bc) and you know all the angles are 60 degrees. if you take the sin of that and multiply everything, you'll get the answer
What angle relationships created when lines are cut by transversal?
1. Alternate Interior Angles 2. Alternate Exterior Angles 3. Corresponding Angles 4. Same-Side Interior Angles 5. Same-Side Exterior Angles
What does adjective angles mean?
Adjective angles? Maybe you meant adjacent angles. Adjacent angles are angles that share a side and a vortex (corner point).| /| /|/____________Pretty bad text drawin up there, but you see 2 angles sharing one side, and they also share a vortex.
How do you find the length of third side when 2 sides and all three angles are known?
The Law of Sines: with triangle ABC, the angles are A, B, & C. The sides {a, b, & c} are opposite of the respective capital letter vertex.a/sin(A) = b/sin(B) = c/sin(C). You know the angles A, B, C; and two sides (say a & b).So side c = a*sin(C)/sin(A) = b*sin(C)/sin(B).You could also use the Law of Cosines: c^2 = a^2 + b^2 - 2*a*b*cos(C)
What is angle side angle prostulate?
If 2 "corresponding" angles of two triangles and the side between the two angles are equal, then the two triangles are congruent. This means all their "corresponding" sides and angles are equal.
