Question

find T.S.A of a cone whose diameter of base is 8cm and height is 3cm

Answer 1

Answer:113.14(approx)

Step-by-step explanation: firstly we have to find slant height i.e.l

After this applying formula (paai *r)(l+r)

Answer 2

total surface area of cone =half ×base × height
1 upon 2×8×3
4×3=12cm