Question

7. Find the lateral or curved
surface area of of a closed
cylindrical petrol tank whose
height is 7 m and diameter is
8m​

Answer 1

Answer:

176 square m

Step-by-step explanation:

h= 7 m

r = 4 m

CSA =

$2\pi \: r \: h \\ = 2 \times \frac{22}{7} \times 4 \times 7 \\ =176 \: {m}^{2}$

Answer 2

Answer:

LSA of cylinder = 176 square metre

Step-by-step explanation:

LSA of cylinder = 2 ( 22/7 ) r h

= 2 ( 22/7 ) ( 4 ) ( 7)

= 2 ( 22 ) ( 4)

= 176 m^2