Dallasb22
In a circle of radius 10 cm, a sector has an area of 40(pi) sq. cm. What is the degree measure of the arc of the sector?



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Freyes
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pi r ^2 = 100 pi

Freyes
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with r = 10

Freyes
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so it's 40/100

Freyes
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40/100 = x/360

Freyes
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solve for x

Dallasb22
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1/4

Dallasb22
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oh ok.

Freyes
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360 * 40

Freyes
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then divide by 100 then you get your angle

Dallasb22
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144?

Freyes
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mhm

Dallasb22
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1.44?

Freyes
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you just take what you know.. put it in a formula and solve

Freyes
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no 144

Freyes
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360 times 40 = 14400

Freyes
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then divide by 100

Dallasb22
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OH

Dallasb22
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Thank you again!