Answers

50cm³の正方形の1辺は5√2cm
20cm³の正方形の1辺は2√5cm

5√2÷2√5=5√10/2

円の半径をxcmとすると
x²×π=72π
x²=72
x=6√2
よって直径は12√2

Post A Comment
Were you able to resolve your confusion?