SOLUTION: The radius of one circle is twice the size of another circle's radius. Is the area of the first circle twice the area of the other circle? Why or Why not?
Algebra.Com
Question 397046: The radius of one circle is twice the size of another circle's radius. Is the area of the first circle twice the area of the other circle? Why or Why not?
Found 2 solutions by stanbon, richard1234:
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
The radius of one circle is twice the size of another circle's radius. Is the area of the first circle twice the area of the other circle? Why or Why not?
0 solutions
--------------------------------------------------------------------------------
No
Area of smaller circle = (pi)r^2
---
Area of larger circle = (pi)(2r)^2 = 4[(pi)r^2]
---
The one with larger radius is 4 times the area of the smaller circle.
==========================
Cheers,
Stan H.
Answer by richard1234(7193) (Show Source): You can put this solution on YOUR website!
The area is four times as much. If 2r and r are the radii of the first and second circles respectively, then the area of the first circle is , and the area of the second circle is .
RELATED QUESTIONS
The radius of one circle is twice the size of another circle’s radius.
Is the... (answered by lwsshak3)
In the two concentric circles with center O, the radius of the large circle is twice the... (answered by Fombitz)
Circle A has a circumference of 8Ï€. The radius of circle B is twice the radius of... (answered by josgarithmetic)
The area of a circle is 30in2. If you triple the circle’s radius, what will its new area... (answered by mananth)
The sum of the area s of two circles is 65pi square feet. The length of a radius of the... (answered by rfadrogane)
Find the radius of a circle whose area is... (answered by liz2298)
calculate the area of a circle whose radius is... (answered by jim_thompson5910)
find the radius of circle whose area is 154... (answered by solver91311)
the radius of a circle is 3m. what is the circumference of another circle, whose area is... (answered by robertb)