Answer:
Melinda is correct, 100 π cm² may be the area of circle
Step-by-step explanation:
It is given that, the diameter is less than 20.
Therefore radius is always less than 10 (20/2)
If radius = 10 then area = πr² = π(10)² = 100 π cm²
Therefore the maximum value of area is 100 π cm²,
it never be 400 π cm².
Joan determined that the area of the circle below is 400 π cm²
So it is false. Melinda says that Joan’s solution is incorrect; she believes that the area is 100πcm^2.
Therefore Melinda is correct, 100 π cm² may be the area of circle
