If a circle has a diameter of 5.6 inches. What is the area of the circle in square inches rounded to the nearest tenth inch?

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Answer 1 · 2018-04-24T08:09:55

#A = 24.6 " inches"^2#

To find the area of a circle, you use the formula:

#A = pi r^2#

We are given the diameter. Divide by #2# to find the radius.

#5.6 div 2 = 2.8 # inches

#A = pi xx2.8^2#

#A= 24.63 " inches"^2#

Rounded to the nearest tenth of an inch is the same as #1# decimal place.

#A = 24.6 " inches"^2#

For #pi# you can use the value on a calculator, or #22/7 or 3.142#