Question

Find the value of x.
Please give step by step explanation.
please don't write only answer explain it please.
​

Answer 1

Answer:

As it is an isosceles triangle both the angle at base will be equal

therefore, 80° + 2x =180 ( angle sum property of triangle )

2x = 180° - 80°

2x = 100

x= 100/2=50°

Answer 2

★Given that,in a isosceles triangle angle a measures 80°

➠To Find : measure of angle B and C

__________________________________________

hence the triangle is isosceles, the measure of angle b and c are the same.

now let's consider the unknown angles as x

the sum of interior angles in a triangle is 180°

so,80+x+x=180°

⟹ 80+2x=180°

⟹ 2x=100

⟹ x=100/2

$\mathbb{\boxed{\pink{x=50°}}\star}$

so angle c=50°

and angle b=50°

hope this helps.!