Question

A circus tent has a radius of 30 m. The ring at the centre for the performance by artists is 10 m in radius. Find the area left for the audience. Use `pi=3.14`.

Answer 1

Area left for the audience=Area of tent=Area o ring.
Area left for the audience=`pir_1^2-pir_2^2`
`=3.14*(30)^2-3.14*(10)^2`
`=2512m^2`.