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April 20, 2024, 05:44:13 am
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Author Topic: Volume  (Read 1125 times)  Share 

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mylinh-nguyen

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Volume
« on: October 20, 2017, 04:33:43 pm »
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Need some help on this question
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Shadowxo

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Re: Volume
« Reply #1 on: October 20, 2017, 04:44:07 pm »
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Quote from: mylinh-nguyen on October 20, 2017, 04:33:43 pm
Need some help on this question
The area of the semicircle is half the circle,1/2*π*r2. r=5 as the diameter is 10cm and radius is half the diameter. The area of the rectangle is length*height which is simply (18-5) * 10, as the length is the total length minus the radius.
Volume is just this total area * width, where width is 28cm
b is just finding the perimeter.
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mylinh-nguyen

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Re: Volume
« Reply #2 on: October 20, 2017, 07:14:59 pm »
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Quote from: Shadowxo on October 20, 2017, 04:44:07 pm
The area of the semicircle is half the circle,1/2*π*r2. r=5 as the diameter is 10cm and radius is half the diameter. The area of the rectangle is length*height which is simply (18-5) * 10, as the length is the total length minus the radius.
Volume is just this total area * width, where width is 28cm
b is just finding the perimeter.

Oh ok thanks!!
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