Mathematics: The area of the sector of a circle with a radius of 8 centimeters is 125.6 square centimeters. the estimated value of pi is 3.14. the measure of the angle of the sector is °. a. 45 b. 135 c. 225 d. 315 e. 450

The area of the sector of a circle with a radius of

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nelyanariba981p555ve

15.03.2022

The sector area is $A=\frac{R^2\alpha}{2}$ .

You have $A=125.6 \text{ square centimeters} \\ R=8 \text{ centimeters}$ ,
then
$125.6 =\frac{8^2\alpha}{2}\rightarrow \alpha= \frac{125.6\cdot 2}{64} =3.925$ .
Since $3.925:3.14=1.25= \frac{5}{4}$ you can obtain that $\alpha= \frac{5\pi}{4}$ =225^{\circ}.

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ambi121488

21.01.2020

Mathematics

the answer would be 1250+200x is less than or equal to 3000. The max you can spend is 3000 so it has to be less than that. 1250 is set, but you do not know how many days he will stay so that will be x.

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The area of the sector of a circle with a radius of 8 centimeters is 125.6 square centimeters. the estimated value of pi is 3.14. the measure of the angle of the sector is °. a. 45 b. 135 c. 225 d. 315 e. 450

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