Question

What is the value of x?
98°

Answer 1

x = 139

Explanation:

Isosceles triangle.

Let the equal angles = y

y + y + 98 = 180 {Sum of all the angles of triangles}

2y + 98 = 180

2y = 180 - 98

2y = 82

y = 82/2

y = 41

x = 41 + 98 { exterior angles equals the sum of interior opposite angles}

x = 139