Find the radius and the diameter to the nearest hundredth when C = 2π yd. Use 3.14 for π. The radius is yards. The diameter is yards.

Question

HI I´m a 7th grade student my teacher doesn´t explain things very well and didnt teach us this at all

Answer 1

C = circumference

r = radius

d = diameter = 2r

You can use the formula

C = 2πr

Then

r = C / (2π) = (2π yd) / (2π) = 1 yd

d = 2r = 2(1 yd) = 2 yd