Answer:
168
Step-by-step explanation:
You just need to triple the answer to get 168.
C=10pi
C=2(r)pi so r=5
A=pi(r)^2
so A=pi(5)^2
A=25pi
The length of the shelf is 10 feet while its height is 10 feet.
<h3>Equation</h3>
Equation is an expression used to show the relationship between the sides and angles of a right angled triangle.
Let x represent the shelf length and y represent the shelf height.
The height of the bookcase is 2 feet longer than the length of a shelf. hence:
Also, 22 feet of lumber is available:
From equation 1 and 2:
y = 12, x = 10
The length of the shelf is 10 feet while its height is 10 feet.
Find out more on equation at: brainly.com/question/13763238
Your answer to your question is -12
