Question

If the length of a pipe is 5m And radius is 2.5m Then the curved surface area of a pipe is_________sq.m​

Answer 1

Answer:

as the pipe is cylindrical in shape

so, CSA of cylinder = 2πrh

= 2 × 22/7 × 25/10 × 5

= 22×25/7

= 550/7

= 78.57m^2

Answer 2

ANSWER:

Given:

• Length of the pipe = 5m
• Radius of the pipe = 2.5m

To Find:

• Curved Surface Area of the pipe

Diagram:

$\setlength{\unitlength}{1mm}\begin{picture}(5,5)\thicklines\multiput(-0.5,-1)(26,0){2}{\line(0,1){40}}\multiput(12.5,-1)(0,3.2){13}{\line(0,1){1.6}}\multiput(12.5,-1)(0,40){2}{\multiput(0,0)(2,0){7}{\line(1,0){1}}}\multiput(0,0)(0,40){2}{\qbezier(1,0)(12,3)(24,0)\qbezier(1,0)(-2,-1)(1,-2)\qbezier(24,0)(27,-1)(24,-2)\qbezier(1,-2)(12,-5)(24,-2)}\multiput(18,2)(0,32){2}{\sf{2.5m}}\put(7,17.5){\sf{5m}}\end{picture}$

Solution:

We know that,

⇒ Curved Surface Area of cylinder = 2πrh

Here, π = 3.14, r = 2.5m and h = 5m.

So,

⇒ Curved Surface Area of the pipe = 2(3.14)(2.5)(5)

⇒ Curved Surface Area of the pipe = 2×5×3.14×2.5

⇒ Curved Surface Area of the pipe = 10×2.5×3.14

⇒ Curved Surface Area of the pipe = 25×3.14

⇒ Curved Surface Area of the pipe = 78.5m²

Formulae Used:

• Curved Surface Area of cylinder = 2πrh

Learn More:

• Curved Surface Area of cylinder = 2πrh
• Total Surface Area of cylinder = 2πr(r+h)
• Volume of cylinder = πr²h