Question

The circumference of a circular design is 20 inches?
What is the length of its diameter?
Use 3.14 as an approximation for pi.

Round your answer to two decimal places.

Answer 1

Ans: diameter = 6.37 in


SOLUTION:
Given,
Circumference of circular design (C) = 20 inches
Pi = 3.14
Diameter (d) = ?

We know,
C = 2 Pi *r
Or, 20 = 2* 3.14 * r
Or, 20 = 6.28 r
Or, 20/6.28 = r
.•. r = 3.185 in,,

Now, d = 2r
= 2*3.185
= 6.37 in,,