Question

This shape has been made from two identical isosceles triangles.

250
х
Work out the size of angle x.

Answer 1

Explanation:

x/2 = 2*25°

x = 2*50°

x = 100°

answer 100

Answer 2

• 100°

Explanation:

Half of angle x is the exterior angle of the triangles with both non-adjacent angles of 25° (same angles opposite same sides)

• x/2 = 2*25°
• x = 2*50°
• x = 100°