The wheels on Elliot's truck each have a circumference of 22 inches. What is the radius of each wheel?
1 Answer
Jul 4, 2016
≈ 3.5 inches
Explanation:
The circumference (C) of a circle is
#color(red)(|bar(ul(color(white)(a/a)color(black)(C=2pir)color(white)(a/a)|)))#
where r is the radius of the circle.To find r we can solve the above equation by rearranging it.
#rArr2pir=C# divide both sides by
#2pi#
#(cancel(2pi)^1 r)/cancel(2pi)^1=C/(2pi)rArrr=C/(2pi)# Substitute C = 22
#rArrr=22/(2pi)≈3.5" inches to 1 decimal place"#