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BlackZzzverrR [31]
3 years ago
8

a corner self is 1/4 of a circle and has the radius of 10.5 inches. enter the area of the self in square inches. can you round i

t to nearest hundredth?

Mathematics
1 answer:
cupoosta [38]3 years ago
8 0

Answer:

The area of the shelf is 86.59 square inches

Step-by-step explanation:

The formula of the area of the circle is A = π r², where

  • r is the radius of the circle

∵ The corner shelf is \frac{1}{4} of a circle

→ That means its area is \frac{1}{4} the area of the circle

∴ The area of the corner shelf = \frac{1}{4} × area of the circle

∵ Area of the circle = π r²

∴ The area of the corner shelf = \frac{1}{4} × π r²

∵ The radius of the shelf is 10.5 inches

∴ r = 10.5 inches

→ Substitute the values of r in the formula of the area

∴ The area of the corner shelf = \frac{1}{4} × π × (10.5)²

∴ The area of the corner shelf = 86.59014751

→ Round it to the nearest hundredth

∴ The area of the corner shelf = 86.59 square inches

∴ The area of the shelf is 86.59 square inches

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