10. What is the circumference of a circle with a diameter of 12 in?

C≈37.7in

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Step-by-step explanation:

Given

Diameter ( d )=12 inch

Circumference= ?

We know , we have the formula

circumference = πd

= 22/7 * 12

= 37.71 inch

distance covered by pamela in 9 l of fuel = 99km

let us apply unitary method here.

distance covered by pamela in 1 l of fuel =99/9 =11 km

now let us find distance covered by pamela if she has 12 l of fuel.

distance covered in 12 l = distance covered in 1 l of fuel * 12

we know that distance covered by here in 1 l is 11 km.

so distance covered in 12 l of fuel = 11*12 = 132 km.