A circle with the radius of 3cm sits inside a circle with a radius of 7cm

What is the area of the shaded region?

(Round your answer to the nearest hundredth

Step-by-step explanation:

This will form a hollow circular part of a cylinder of outer radius 7cm and inner radius 3cm

Area of a circle is given by πr^2.

Then, the big circle of radius 7cm

Area = πr^2

Area=22/7*7*7

Area = 154cm^2.

Area of the circle of radius 3cm

Area = πr^2

Area=22/7*3*3

Area = 28.286cm^2.

Area of the shaded part becomes

Big area - small area

154-28.286

Area of shaded part = 125.7143cm^2

Then to the nearest hundredth

Area of shaded part = 125.71cm^2