A circus tent has a radius of 45 m. The
ring to perform at the centre is 15 m
in radius. Find the area for audience.
(pie = 3.14)
Answers
Answer:
2512.315 m^2
Step-by-step explanation:
Radius of a circular tent , R = 30 m
We know,
Area of a circle = πR^2
Therefore,
Area of a circular tank = 22/7 × ( 30 )^2
= 22/7 × 30 × 30
= 2828.57 m^2
= 2828.6 m^2 ( approx. )
Also,
Radius of a circular ring at the centre, r = 10 m
We know,
Area of the circle = πr^2
= 22/7 × (10)^2
= 314.285 m^2
So,
Area of the space left for the audience
= πR^2 - πr^2
= ( 2826.6 - 314. 285 ) m^2
= 2512.315 m^2
Answer:
5652
Step-by-step explanation:
Area of circle=(pie)[(radius)^2]
=(3.14)[(45)^2]
=(3.14)[2025]
=6358.5
Area of smaller circle=(pie)[(radius)^2]
= (3.14)[(15)^2]
= (3.14)[225]
=706.5
Area of audience=6358.5-706.5
=5652