The perimeter of a semicircle is 20.56 yards. What is the semicircle's radius?
1 answer:
You might be interested in
Step-by-step explanation:
- <em><u>distribute</u></em><em><u> </u></em>4 through the parentheses
- add numbers
- move the <em><u>variable</u></em><u> </u>to the left hand side and change its sign
- move the <em><u>constant </u></em>to the right hand side and change its sign
- collect<em><u> like</u></em><em><u> terms</u></em>
<em><u></u></em>
- calculate the difference
- divide both sides of the equation by <em>-</em><em>5</em>
<em></em>
Answer:
<h2>1. V = 100 in³</h2><h2>2. h = 10 in</h2>Step-by-step explanation:
The formula of a volume of a cylinder:
<em>B</em><em> - base area</em>
<em>h</em><em> - height</em>
<em />
1. We have
<em>h = 5in, B = 20 in²</em>.
Substitute:
2. We have
<em>B = 20.7 in², V = 207 in³</em>.
Substitute:
<em>divide both sides by 20.7</em>