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lara31 [8.8K]
3 years ago
9

A science fair poster is a rectangle 48 inches long and 24inches wide. What is the area of the poster in square feet?

Mathematics
1 answer:
fomenos3 years ago
7 0

Answer:

7.9936 Square feet

Step-by-step explanation:

To get the area of the poster in square feet, it might be important to convert the original dimensions in inches to feet.

1 inch = 0.0833 feet

48 inches = 48 * 0.0833 = 3.9984

24 inches = 24 * 0.0833 = 1.9992

The area of the poster in square feet is thus : 3.9984 * 1.9992 = 7.9936 square feet

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Step-by-step explanation:

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Cone:

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Diameter = 30m

Radius r = 30/2 = 15 m

Volume of Cone:

=\frac{1}{3}\pi r^{2}h\\\\=\frac{1}{3}\pi*15*15*33\\\\=\pi*15*15*11\\\\=2475\pi m^{2}

Hemisphere:

Radius r = 15 m

Volume of Hemisphere =

=\frac{2}{3}\pi*r^{3}\\\\=\frac{2}{3}\pi*15*15*15\\\\=2*\pi*5*15*15\\\\=2250\pi

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