The diamitor fro a circle is 40 inches. what is its radius and circumference

Radius is half the diameter, so the radius is 20. The circumference formula is 2 times pi times radius. It simplifies to 40 times pi. The circumference is 125.60in².

Hello there! :}

Question:

The diameter for a circle is 40 in. What is its radius and circumference?

1.) To find the radius is d ÷ 1/2 

so , radius = 20 in <<<< answer for radius

2) To find the circumference C = πd
 
= π x 40 

= 125.66 in <<< answer for circumference 

Hoped this helped you solve for your answer!
have a great day =)

~Shane

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