Question

unit 2 • measurement systems and machine tool math overview
one degree can be divided into 60 smaller units called minutes, so one minute is 1/60 of a degree. minute values are identified by the symbol . for example - 21.
step 2: subtract 21 from the 21.6 and record the 30°21. choose a ratio for conversion.

1. what is the radius of a 3.65 - inch - diameter circle?

1.825 inches.

1. what is the circumference of the circle in the previous question?

Explanation:

Step1: Recall the circumference formula

The formula for the circumference of a circle is $C = \pi d$, where $d$ is the diameter.

Step2: Substitute the given diameter

Given $d = 3.65$ inches, then $C=\pi\times3.65$. Taking $\pi\approx3.14159$, we have $C\approx3.14159\times3.65 = 11.4617035\approx11.46$ inches.

Answer:

$11.46$ inches