Question

a circus tent has a radius of 30m the ring at the centre for the performance is 10m in radius. Find the area left for the audience.use pai=3.14

Answer 1

We know that area of circle = pi * r * r

                                               = 3.14 * 30 * 30 - 3.14 * 10 * 10

                                               = 2826 - 314

                                               = 2512 m^2.


Hope this helps!

Answer 2

Answer:

$2512 m^2$

Step-by-step explanation:

Radius of circular tent = 30 m

Area of circular tent = $\pi r^2$

                                  = $3.14 \times 30^2$

                                  = $2826 m^2$

The ring at the centre for the performance is 10m in radius.

Area of ring =$\pi r^2$

                    = $3.14 \times 10^2$

                    = $314 m^2$

Area left for audience =  $2826 m^2-314 m^2$

                                     =  $2512 m^2$

Hence the area left for the audience is  $2512 m^2$