Acircle has an area of 49 pi^3. what is the radius of the circle?

radius = 7π

Step-by-step explanation:

The area (A) of a circle = πr² ← r is the radius

The area is given as 49π³ , equating gives

πr² = 49π³ ← divide both sides by π

r² = 49π² ← take the square root of both sides )

r = = 7π

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.

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step-by-step explanation: