Question

The diameter of a tyre is 77 cm. Find the distance covered by it in 10 rounds​

Answer 1

Answer:

2420 cm or 24.2 m

Step-by-step explanation:

first , find its radius

then , find its circumference of the circle

then , multiply the result by 10

You will get the answer

Answer 2

Answer:

we know that D=2r

so r=D/2

r=38.5

here we need to find the circumference of the tyre which would give us its total rounds..

circumference=2πr

= 2π*38.5

=241.90

the circumference of the tyre is 241.90cm

the distance covered by tyre in one round is 241.90

now since we need to find distance covered by the tyre in 10 rounds ...

=241.90*10

=2419cm ...

may this help you

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