Question

1. A race track is in the form of a ring whose inner circumference is 290 m and outer circumference is 264 m. Find the area of the track. rire in the shape of a square of side 16,5 cm is cut and bent in the shape of a circle​

Answer 1

Step-by-step explanation:

ATQ,

2πr =290

r= 46.15

area of this part πr^2 = π×(46.15)^2= 6691 sq m

2πr =264

r= 42.02

area of this part πr^2 = π×(42.02)^2= 5547.9 sq m

area of the track = 6691- 5547.9 =1143.1 sq m