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Neko [114]
2 years ago
13

Lena has started painting her room. She is down to her last can of paint. The cans of paint that she is using are 11 inches tall

and have a diameter of 7 inches. How much paint does she have left if the paint is now 2 inches from the top of the can?
Question options:

134.75π in3

110.25π in3

154π in3

22π in3
Mathematics
1 answer:
MrRissso [65]2 years ago
3 0

Answer:

110.25π in^{3}

Step-by-step explanation:

The can is a circular cylinder and has the formula for the volume to be

V = \pi r^{2} h

r = 3.5 and h = 11

Since the paint is now 2 in. from the top of the can, then there are 9 in. left in the can, which means there is 9/11 of the total volume in the can.

Therefore,  V = (9/11)\pi (3.5^{2} )(11)

 we get V = (9/11)(12.25)(11)π

                 =  110.25π in^{3}

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Read 2 more answers
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