Question

find the volume curved surface area and the total surface area of the cone having base radius 35 cm and height 12cm​

Answer 1

Step-by-step explanation:

V=πr2h

3=π·352·12

3≈15393.804cm³ ( volume)

AL=πrl

l=r2+h2

Solving forAL

AL=πrh2+r2=π·35·122+352≈4068.36249

( curved surface area)

A=πrl+πr2

l=r2+h2

Solving forA

A=πr(r+h2+r2)=π·35·(35+122+352)≈7916.81349