Question

Find the value of x.
1) fand E
72°

Answer 1

The value of x in the triangle is 54°

Using the triangle given for our Calculation;

Using the base angle of an isosceles triangle theorem ,

• x = x (base angles of an isosceles triangle are the same

Now we have ;

72 + x + x = 180 ( sum of angles in a triangle)

72 + 2x = 180

2x = 180 - 72

2x = 108

x = 54

Hence, the value of x is 54°