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28 votes
28 votes
The radius of a circle with area A is approximately $\sqrt{\frac{A}{3}}$ . The area of a circular mouse pad is 45 square inches. Estimate its radius to the nearest tenth.

User Mitul Gedeeya
by
3.0k points

1 Answer

24 votes
24 votes

Answer:

A =
\pi
r^(2)

45 =
\pi
r^(2)

45/
\pi =
r^(2)

14.3 =
r^(2)

r = 3.8

User Bryan Van Rijn
by
2.6k points