Question

In rectangle JKLM, angle KLM is 4x + 10. Find the value of x.

Answer 1

Answer: x = 20

JKML is a rectangle => ∠KLM = 90°

⇔ 4x + 10 = 90

⇔ 4x = 80

⇔ x = 80/4

⇔ x = 20

Explanation: