If the sum of the areas of two circles with radii R1 and R2 is equal to the area of a circle of radius R, then
A. R1 + R2 = R
B. R12 + R22 = R2
C. R1 + R2 < R
D. R12 + R22 < R2
Answer:B
If the sum of the areas of two circles with radii R1 and R2 is equal to the area of a circle of radius R, then
A. R1 + R2 = R B. R12 + R22 = R2 C. R1 + R2 < R D. R12 + R22 < R2
Explanation: According to the given,