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?

Question

1993 views around the world

You can reuse this answer
Creative Commons License

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#