Question

tsa of cone r=3cm slant height is 11cm​

Answer 1

Answer:

TSA of cone =

$\pi r(l + r)$

=22/7 × 3 (11 + 3)

=22/7 × 3 × 15

=141.428571429

=141 cm

Step-by-step explanation:

Hope

It may be helpful..

Regards..

Purple u..

Answer 2

Answer:

Total surface area of a cylinder with a base radius 'r' and height 'h' is given by=T.S.A=2πr(h+r)

For r=3cm,h=11cm

T.S.A=2π(3)(11+3)

=2×

7

π

×3×14

=12×22cm

2

=264cm

2