Question

Find the height of the solid circular cylinder of the total surface area 660 cm square radius 5cm

Answer 1

R = 5cm

TSA = 660 cm sq.

➡️ 2*22/7*5(5+h) = 660

5+h = 660*7/2*22*5 = 21cm

h = 21-5 = 16 cm

Hope it helped ☺️☺️✌️✌️⭐⭐

Answer 2

We know tsa=

$\pi(r(r + l))$

660=22/7(5(5+×)

660=22/7(25+5x)

660×7/22=25+5x

30×7=5(5+x)

210/5=5+x

42=5+x

37=x

So the height of cone is 37