Question

A cone has a surface area of 10 cm and slant height of 30 cm.Calculate the radius

Answer 1

Answer:

Total surface area of a cond is given by Πr(l+r)

Now wherer=10cm,l=30 cm.

Thus tsa=(22/7)(10)(10+30)

=(400)(22/7)

=400×3.14

=1256 sq. cm

Hope it helps.. by sarveshwar  ok please mark as brilliant

Step-by-step explanation: