Answer:

Step-by-step explanation:
r = Radius of semicircle = 
Area of semicircle is given by

The area of the semicircle is
.
Answer:
16 + -16 -4 ( 20 ) - 6)
Step-by-step explanation:
here is answer
Answer:
<h2>x = 6</h2>
Step-by-step explanation:

Multiply through by 2
That's

<u>Expand</u>
That's
5x + 4 + 4x = 58
9x = 58 - 4
9x = 54
Divide both sides by 9
That's

We have the final answer as
<h3>x = 6</h3>
Hope this helps you