Question

Given a circle with a radius of 0.85 meters, find the area of 1/3 of the circle. Use 3.14 for pi and round to the nearest hundredth.

Answer 1

Answer: 0.76 square meters

Step-by-step explanation:

The area of circle is given by :-

$\text{Area}=\pi r^2$, where r is the radius of the circle.

Given: Radius of circle = 0.85

The area of circle will be :-

$\text{Area}=(3.14) (0.85)^2=2.26865\ m^2$

Now,  area of 1/3 of the circle is given by :-

$A=\dfrac{1}{3}\times2.26865=0.7562166666\approx0.76\ m^2$

Answer 2

1/3 x pi x radius squared 
1/3 x pi x 0.7225 = 0.7566002307 

0.76 to nearest hundredth