Question

A circle has a radius of 8cm use the value 3.1 for π to calculate the area of a sector of the circle if the angle at the center is 150°

Answer 1

Answer:

                $8\frac23\ cm^2$

Step-by-step explanation:

sector of the circle if the angle at the center is 150° means  $\frac{150^o}{360^o}$ of full circle of given radius

area of a circle of given radius R is:  πR²

so area of given sector:

$A=\dfrac{150^o}{360^o}\cdot \pi\cdot8^2=\dfrac5{12}\cdot3.1\cdot64=82,(6)=8\frac23\ cm^2$

Answer 2

Answer:

8 2/3cm²

Step-by-step explanation: