Question

2. The curved surface area of frustom of a cone is given by
a.pie(r1+r2)h
b. pie(r2+r1)l
c. pie(r1-r2)l
d.None of these​

Answer 1

Answer:

pie(r1+r2) l

Step-by-step explanation:

where l =√h2+(r1-r2)2

Answer 2

Step-by-step explanation:

a wala h pie (r1+r2)h okk