Question

The ratio of the radii of two wheels is 5:7. Find the ratio of their circumference and area.
Make sure it should be an easy answer with the best explanation ;)

Answer 1

hey mate

radii =5:7

radius is directly proportional to circumference

ratio of circumference =5:7

area is directly proportional to radius square

ratio of area =(5/7)square

25/49


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Answer 2

Answer:

Step-by-step explanation:

r1 : r2   =   5 : 7

ratio of circumference = 2π5x : 2π7x  =  5 : 7

ratio of area = π(5x)² :  π(7x)² =  25 : 49