Solve for x.

Question

A right triangle B-C-A is right angled at C, angle A is x degrees and angle B is 2x degrees.
A.
30

B.
45

C.
60

D.
90

Answer 1

Given that angle A is x degrees and angle B is 2x degrees and the triangle is right angled at C, we have:

x + 2x + 90 = 180
3x + 90 = 180
3x = 90
x = 30

Therefore, the solution is A. 30.