Question

heyy theee hope you all are fine. please help me this last question on my worksheet, and please explain me how is it done. I'm unabke to understand it.​

Answer 1

Answer:

a=90°

b=10°

Step-by-step explanation:

We know that each angle of a rectangle is 90°

Hence, (160-8b) + (2b-10) = 90°

Evening the equation out, we get 10 = b.

Now , we substitute b in the equation we wish to di it in

In this case I will do it with a=(2b-10) + (160-8b).

This is because all angles jn a rectangle/square are equal and it's respective value would be 90°.

When we substitute for b , we get a = 20-10+160-80

= 10+80 = 90°

Hope this helps!!