1.The base areas of two similar cones are 32cm^2 and
50cm^2
a)Find the ratio of the curved surface area of the smaller
cone to that of the larger one.
Ratio of curved surface areas of small cone to the large cone
= 32 : 50
= 16 : 25
點解係16:25既,curved surface area係底面積既1/2咩,唔明????
有冇人可以詳細解釋下?