296,904 views
38 votes
38 votes
Find the diameter of a circle with an area of 94 square millimeters.

User LeTex
by
2.1k points

2 Answers

19 votes
19 votes

Answer:

10.94.

Explanation:

Using the formulas

A=πr2

d=2r

Solving ford

d=2/A

π=2·94

π≈10.94004

User Elmex
by
3.1k points
12 votes
12 votes

Answer:

10.94 mm

Explanation:

Formula to find the area of a circle is :

Area = π r²

Given that, the area of the circle is 94 mm²

Now let us find the value of r ( radius ).

Area = π r²

94 = π r²

94 ÷ π = r²

29.92 = r²

√29.92 = r

5.47 = r

And now let us find the diameter of the circle.

d = 2r

d = 2 × 5.47

d = 10.94 mm

Hope this helps you :-)

Let me know if you have any other quetions :-)

User Bilow
by
3.5k points