Question

10. In an isosceles triangle, the base angles are equal. The vertex angle is thrice either base angles.
What are the measures of the angles?​

Answer 1

Answer:

36°, 36° , 108°

Step-by-step explanation:

isosceles triangle have 2 equal sides.

in question it is given that base angles are equal.

and vertex angle is thrice of base angles.

so,

consider two equal base angles = X and X

now,. other vertex angle is = 3x

since,

sum of angles of triangle = 180°

therefore,

X + X + 3X = 180°

5X = 180°

X = 180/5

X = 36°

and 3x = 3*36

= 108°