A dartboard has a diameter of 4 inches. What are its radius and circumference? Round to the nearest hundredth. Use 3.14 for it. The radius is inches. The circumference is approxi…

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asked Oct 4, 2021 37.8k views

1 Answer

TheHvidsten · Answer 1 · 2021-10-08T16:59:44+0000

Answer: The radius is 2 inches.

The circumference is approximately 12.56 inches.

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.