Question

If TSA of cone is 704 sq. cm and radius of its base is 7cm. Find its slant height (π=22/7)​

Answer 1

Answer:

Total surface area of cone=πr

2

+πrl (r=Radius, l=slant height)

⇒704=πr(l+r)

⇒704=

7

22

×7(7+x)

⇒

22

704

−7=l

⇒l=25cm.

Answer 2

here r=7 cm

tsa of cone =πr(l+r)