Question

The inner and outer circumference of a circular ring is 44 cm and 88 cm respectively. Find the width of the ring and area of path how to do

Answer 1

Answer:

width of the ring = 7cm

area of path = 462 cm. square

Step-by-step explanation:

inner circumference = 44 cm

radius of inner circle = 44x7/2x22 = 7cm

outer circumference = 88 cm

radius of outer circle = 88x7/2x22 = 14 cm

width of the ring = radius of outer circle - radius of inner circle = 14-7 = 7 cm

area of the path = area of outer circle - area of inner circle

= 22/7 (14x14)- 22/7 (7x7) = 22/7(14 x 14 - 7x7) = 22/7 (147 ) =462 cm. square