Question

the inner circumference of a 14 m wide circular racetrack is 440. find the radius of the outer circle.​

Answer 1

Step-by-step explanation:

circumference of inner circular track = 2πr = 440

$2\pi \: r = 440 \\ r = \frac{440 \times 7}{22 \times 2} \\ r = \frac{440 \times 7}{44} \\ r = 10 \times 7 = 70$

width of circular track = 14 m

radius of outer circular track = radius of inner circular track + 14

= 70 + 14

= 84 m

hope you get your answer