Register

A circle has an area of approximately 201.06 cm^2. If the radius doubled, what is the approximate area of the new circle?

A circle has an area of approximately 201.06 cm^2. If the radius doubled, what is the approximate area of the new circle?
asked 10.2k views
23 votes
a circle has an area of approximately 201.06 cm^2. If the radius doubled, what is the approximate area of the new circle?

asked
User Asdrubalivan
by
8.0k points

1 Answer

14 votes
804.24 - we know this because the area of a circle is r^2*pi. If we double the radius we get (2r)^2*pi or 4r^2*pi. We notice that this is just 4 times the area of the original circle, equating to 804.24.
answered
User Csterling
by
7.5k points
← Prev Question Next Question →

No related questions found

Ask a Question
Welcome to Qamnty — a place to ask, share, and grow together. Join our community and get real answers from real people.

Categories

Other Questions

How do you can you solve this problem 37 + y = 87; y =
What is .725 as a fraction
A bathtub is being filled with water. After 3 minutes 4/5 of the tub is full. Assuming the rate is constant, how much longer will it take to fill the tub?
Link Copied!