Question

1.The length of the equator on a globe is 88 cm. find its radius.

Answer 1

Equator on the globe forms a circle. And the length of the equator is the perimeter of the circle.

Let the radius of circle be R.
So perimeter = 2πR = 88
⇒ R = 88/2π
⇒ R = 14 cm

Diameter = 2R = 14×2 = 28cm

Answer 2

Answer:

Step-by-step explanation:

Equator on the globe forms a circle. And the length of the equator is the perimeter of the circle.

Let the radius of circle be R.

So perimeter = 2πR = 88

⇒ R = 88/2π

⇒ R = 14 cm

Diameter = 2R = 14×2 = 28cm

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