Question

the LSA of cone is 4070sq.cm and its diameter is 70cm . what is its slant height?

Answer 1

LSA=4070=piRL
22/7*35*L=4070
L=4070/110=37cm

Answer 2

Radius= 70/2= 35cm
Now By using the formula
LSA=πrL
and LSA or CSA is given
So, 4070=π×35×L
4070=22/7×35×L
4070=110×L
4070/110=L
37=L
So, slant height of cone is 37 cm.
I hope it will help you!!!!!