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3 years ago

PLEASE HELP PLEASE PLEASE

Mathematics

1 answer:

Finger [1]3 years ago

8 0

Answer:

Unshaded sector = 78.5

Shaded Sector = 628

Step-by-step explanation:

There are two sectors there. I'll do them both.

Unshaded

The central angle of the unshaded part is 360 - 320 = 40 degrees.

r = 15

pi = 3.14

Area sector = theta/360 * pi *r^2

Area Small sector = (40/360) * 3.14 * 15^2 Reduce 40/360 expand 15^2

Area Small Sector = (1/9) * 3.14 * 225 combine

Area Small sector = 78.5

Shaded sector

Area Large sector = (320/360) * 3.14 * 15^2

Area Large Sector = 628

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lara31 [8.8K]

Answer:

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3 years ago

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VladimirAG [237]

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3 years ago

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babunello [35]

Answer:

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3 years ago

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3 years ago