Question

Please answer it step by step​

Answer 1

x = 3.87

Explanation:

We know the unlabelled angle is 90 degrees since it is a right triangle. The sum of the other two angles is 5x^2 +x^2 = 6x^2

the sum of all angles is 90 degrees.

90 + 6x^2 = 180

6x^2 = 90

x^2 = 90/6 = 15

x = square root of 15 which is 3.87