Question

\angle A=8x-10 \angle B=3x+90 please help me to slove the angle to B

Answer 1

x = 20

∠B =150°

Step-by-step explanation:

Angles A and B are alternate interior angles formed by the intersection of a line with two parallel lines. Therefore, the measure of A and B is the same.

`∠A=∠B`

Now since ∠A = 8x - 10 and ∠B = 3x + 90, the above equality gives

`8x-10=3x+90`

We just need to solve for x.

Adding 10 to both sides of the equation gives

`8x-10+10=3x+90+10`