Question

in each of the following figure find the value of x​

Answer 1

Answer:

x = 110 degree

Step-by-step explanation:

As it is given AB = AC, it's an isoceles triangle

i.e its angle willbe equal

also we know that area of triangle is 180 degree

so considering an angle of isoceles triangle as A,

thus, 2A + 40 = 180

2A =140

A= 70

each angle is of 70 degree

but as x + 70 = 180

(exterior angle property)

x= 110

Thus exterior angle is 110 degree