C = pi * 2r
66 = 3.14 * 2r
66 = 6.28r
10.51 = r
Find the radius of a circle given that the circumference is 66cm.
2 answers
circumference = pi x d
66cm ÷ pi = 19.098593171 (rounded to the nearest 10th decimal)
the diameter is twice as long as the radius.
19.098593171 ÷ 2 = 9.54929658551
a more simple way to put it is
9.55 (rounded to the hundreth)
66cm ÷ pi = 19.098593171 (rounded to the nearest 10th decimal)
the diameter is twice as long as the radius.
19.098593171 ÷ 2 = 9.54929658551
a more simple way to put it is
9.55 (rounded to the hundreth)
1 answer