Nysean was solving the question below: The base of a merry-go-round spans an area of about 153.86 square meters. What is the radius of the merry-go-round?

Nysean says the radius of the merry-go-round is 14 meters. Do you agree or disagree? Explain.

Area = PI * radius^2

radius^2 = Area/ PI

radius^2 = 153.86 / 3.14159265

radius^2 = 48.9751591442

radius = 6.9982254282

radius = 7 square meters (rounded)

Step-by-step explanation:

256π units²   (answer b)

step-by-step explanation:

the formula for the surface area of a sphere of radius r

is             a = 4πr²

and so, if r = 8 units, then the surface area is:

a = 4π(8 units)² = 256π units²   (answer b)

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step-by-step explanation: