Question

A circle with radius of 4 cm sits inside a circle with radius of 11 cm what is the area of the shaded region?

Answer 1

329.7 cm²

Step-by-step explanation:

Step 1:

To find the area of the shaded region, we will subtract the smaller area from the larger area.

Step 2:

Area of Circle = π $*$ r²

Where, r= radius of circle

            π = 3.14

Here Larger circle area (A) = π $*$ 11 $*$ 11        ( r = 11 cm)

                                            = 379.94 cm²

Smaller circle area (a)         = π $*$ 4 $*$ 4           ( r = 4 cm)

                                            =  50.24 cm²  

Step 3:

Shaded Area = A - a

                        = 379.94 - 50.24

                        = 329.7 cm²

Answer 2

Answer:

329.7

Step-by-step explanation: