The sum of the areas of two circles is 80π square meters. Find the length of a radius of each circle if one of them is twice as
long as the other.
What is the radius of the larger circle?
What is the radius of the larger circle?
2 answers:
You might be interested in
No. We claim that 
and use algebra to prove the statement.
Let
. Multiply this by ten to get 
. Subtract the initial equation to give 
and divide by 
to see that 
. Substituting into the original equation gives , proving the desired statement.
Let