What is the circumference of a circle with a radius of 7.9 inches? Use 3.14 for pi. Enter your answer as a decimal in the box. in.

Question

asked Feb 11, 2023 214k views

2 Answers

Aaron Hall · Answer 1 · 2023-02-11T20:56:58+0000

CIRCUMFERENCE OF A CIRCLE CAN BE FOUND USING THE FORMULA :

$c = 2\pi \: r \\ \\ or \\ c = \pi \: d$

BUT NOTE d WHICH IS THE DIAMETER IS TWICE THE RADIUS r MEANING IF YOU WERE TO USE THE FORMULA

$c = \pi \: d$

YOU WOULD USE

$d = 2(7.9) \\ d = 15.8 \\ c = (3.14)15.8) \\ c = 49.612 \: \: inches$

NOTE THE TWO FORMULAS RETURNED THE RIGHT CORRECT ANSWER

GOODLUCK!

ALL THESE FORMULAS CAN LEAD YOU TO THE CORRECT ANSWER

$c = 2(3.14)(7.9) \\ c = 49.612 \: inches$