Question

ln an isosceles triangle, the base angles are equal. lf the vertex angle is 50 degrees and base angle is x, find x.

a, 50 degrees
b, 70 degrees
c, 65 degrees​

Answer 1

given - it is an isosceles triangle

to find - x,y

sol- if one angoe is 50* the by angle sum property 180-50 = 130

we know that base angles are equal so 130/2 =65*

option c) 65*

Answer 2

Answer:

65°

Step-by-step explanation:

Let the isosceles triangle be ABC with A as vertex angle, B and C be base angles.

We are given that,

A=50°

B=C=x

To find:-------------------- B and C.

We know that,

Sum of all angles in a triangle = 180°

====> A+B+C = 180°

50°+B+B = 180° (from given)

2B = 180°-50°

2x = 130°

x = 130°/2

x = 65°

x = B= C = 65°

Therefore, the value of the base angles B and C is 65°.

Hope it helps you.

Good luck.