Question

A circle has the circumference of 3.75 in. What is the diameter of the circle? (Use 3.14 for p. Round to the nearest tenth.) a. 1.9 in c. 0.6 in b. 1.2 in d. 7.5 in

Answer 1

Answer:

b. 1.2 in

Step-by-step explanation:

The formula of a circumference:

$C=d\pi$

d - diameter

We have C = 3.75 in.

Substitute:

$d\pi=3.75\qquad\text{use}\ \pi\approx3.14\\\\3.14d=3.75\qquad\text{divide both sides by 3.14}\\\\d=\dfrac{3.75}{3.14}\\\\d=\dfrac{375}{314}\\\\d\approx1.2\ in$