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A carpenter is making a tabletop with circumference 4.5m. What is the radius of the tabletop in cm?

User Locket
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1 Answer

4 votes

Answer:

The radius of the tabletop in cm is 72 cm (approximately).

Explanation:

Given:

Circumference of tabletop is 4.5m.

So, to get the radius in cm.

Now, we convert the unit of circumference from m to cm.

( 1m = 100 cm )


4.5m = 4.5* 100cm


= 450 cm.

Let the value of radius be r.

Now, putting the formula of circumference to get the radius:

Circumference=
2\pi r


450 =
2* 3.14* r (putting the value of π = 3.14)


450=
6.28* r

Dividing by 6.28 on both the sides:


71.65=r

Radius = 71.65cm

Therefore, the radius of the tabletop in cm is 72 cm (approximately).

User LHCHIN
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