3x + 4x + 5x = 180
12x = 180
x = 15
The angles are 45, 60 and 75
Well, if one angle is acute then the other one has to be acute. This is because the definition of complimentary angles is the sum sum of the angles has to add up to 90 degrees. So therefore, the angle has to add up to 90 degrees.
The measurement of angle ABD is 73 degrees. You find this angle by subtracting angle DBC from angle ABC, or 89-16 is equal to 73 degrees.
A right triangle, that is, one with one angle of 90 degrees.
The answer is 13. x=13 13*5+13*2=91 Thank you.
this is called vertical angles
90o. Let A be the size of the smallest angle. Then the three angles are A, A & 2A. The sum of the angles in a triangle is 180o, thus: A + A + 2A = 180o 4A = 180o A = 45o So the largest angle is 2A = 2 x 45o = 90o.
The three angles are 40, 50 and 90 degrees.
In a triangle, the sum of the angles is always 180 degrees. This is known as the angle sum property of triangles. Additionally, the largest angle in a triangle is always opposite the longest side, and the smallest angle is opposite the shortest side.
If two angles of a triangle each measure 55 what is the measure of the third angle?
angle with smallest measure - apex
Two angles of a triangle add up to 65°. What is the measure of the third angle?
smallest angles of what? a triangle?
80
180- total of the first two angles= 3rd angle
The missing angle measure is 100 degrees.
They are all 60 degrees.
54 degrees