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The circumference of a circular painting is 28.26 feet. What is the radius of the painting? Use 3.14 for π and do not round your answer.

Respuesta :

The formula for circumference is 2 [tex] \pi [/tex] r. You are given the circumference, so:

28.26 = 2(3.14)r

28.26 = 6.28r

28.26/6.28 = r

The radius is 4.5 feet

Answer:

r = 4.5  ft

Step-by-step explanation:

The distance around a circle is known as the circumference. The formula for the circumference of a circle is denoted as 2πr.

circumference of a circle = 2πr

where

r = radius

π = 3.14

circumference = 28.26 ft

28.26 = 2 × 3.14 × r

28.26 = 6.28r

divide both sides by 6.28

r = 28.26/6.28

r = 4.5  ft