The first angle A is twice as large as the second, angle B. The third angle C is 20 degrees larger than B (as B must be the smallest angle). The internal angle sof a triangle add to 180 degrees.
A + B + C = 180
A = 2B
C = B + 20
(2B) + B + (B + 20) = 180
4B + 20 = 180
4B = 160
B = 40o.
A = 2B
A = 2 X 40
A = 80o.
C = B + 20
C = 40 + 20
C = 60o.
The internal angles of all triangles always add up to 180 degrees. Call our triangle angles A,B and C respectively
A+B+C = 180°
All the dimensions of the triangle are described in terms of angle A; the smallest angle.
A= A, B = 2A, C = A + 20o
So in terms of A:
A +2A + A+20o 180o
4A +20o = 180o therefore 4A = 180o - 20o = 160o and therefore A = 160/4 = 40o
If A= 40o and B = 2A and C = A + 20o
Then
A = 40o, B = 80o, C = 60o
Smallest possible interior angle of regular polygon is 60 degrees (triangle). The greater the number of sides, the greater each interior angle. If exterior angle is 30 degrees, the polygon has 12 sides.
An obtuse triangle has one angle greater than 90 degrees.
The third angle is 180-(60+70) = (180 - 130) = 50degrees.-- All of its angles aren't equal, so it's not an equilateral triangle.-- No two of its angles are equal, so it's not an isosceles triangle.-- No angle in it is 90 degrees, so it's not a right triangle.-- No angle in it is greater than 90 degrees, so it's not an obtuse triangle.--> It's an acute, scalene triangle.
Acute angles are greater than 0 but less than 90 degrees Right angles are 90 degrees Obtuse angles are greater than 90 but less than 180 degrees Reflex angles are greater than 180 but less than 360 degrees A full turn is 360 degrees
An equilateral triangle has 3 interior equal acute angles each measuring 60 degrees. In general an acute angle is greater than 0 but less than 90 degrees.
It is an acute angle which is greater than 0 but less than 90 degrees
A triangle that has an angle greater than 90o is an obtuse triangle.
two (there is no way to divide 180 degrees into three parts that leaves you with two or more angles greater or equal to 90 degrees)
An obtuse triangle.
One angle in a triangle can be greater than 90 degrees, but no more than one.
Smallest possible interior angle of regular polygon is 60 degrees (triangle). The greater the number of sides, the greater each interior angle. If exterior angle is 30 degrees, the polygon has 12 sides.
It can. An example of an isosceles triangle without any angles greater than 90 would be an equilateral triangle, with all angles equalling 60 degrees. An example with an angle greater than 90 would be a triangle with angles of 100 degrees, 40 degrees and 40 degrees. You couldn't have an isosceles triangle with 2 angles greater than or equal to 90, as all the angles sum to 180 degrees.
Obtuse Triangle
An obtuse triangle.
No. If a triangle has an obtuse angle, the other two will be acute.Addition from another contributor: The measurement of all three of a triangle's angles combined is always 180 degrees, and an obtuse angle is by definition greater than 90 degrees and less 180. Thus, any possible combination of two obtuse angles, even of the smallest possible, (if there was such a thing) would still yield a measure greater than 180 degrees.
The answer is 36...Triangle = 1,3,6,10,15,21,28,36Square = 1,4,9,16,25,36
There is no such triangle because the 3 angles in any triangle add up to 180 degrees.