3 years ago

A dartboard has a diameter of 4 inches. What are its radius and circumference? Round to

Mathematics

1 answer:

arlik [135]3 years ago

8 0

Answer: The radius is 2 inches.

The circumference is approximately 12.56 inches.

Step-by-step explanation:

Given : The diameter of a dartboard = 4 inches

Since , radius is half of the diameter.

Therefore, radius of dartboard = (diameter) ÷ 2

= (4 inches ) ÷ 2 = 2 inches

Also, Formula for circumference : $C=2\pi r$ , where r is radius.

Now , Circumference of dartboard = $2(3.14)(2)=12.56\text{ inches}$

Hence, The radius is 2 inches.

The circumference is approximately 12.56 inches.

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