408,462 views
27 votes
27 votes
The circumference of a circle varies directly as the diameter of a circle. When the diameter of a circle is 5, the circumference of the circle is approximately 15.7.

What is the approximate circumference of a circle with a diameter of 9? Round answer to nearest tenth.

User Zmx
by
3.1k points

1 Answer

17 votes
17 votes

Explanation:

diameter=9

radius 4.5

circumference=2πr

2×22/7×4.5 =28.2

User Handicop
by
2.5k points