Question

find the canvas required to make a tent cylindrical to a height of 5cm conical to a height of 4cm and having a radius of 3cm​

Answer 1

Answer:

12cm..................

Answer 2

Answer:

141.42 cm²

Step-by-step explanation:

Consider a tent of cylindrical height 5cm, conical height of 4cm, with the radius 3cm.

CSA of the cylinder: 2**r*h

=2 * $\frac{22}{7}$*3*5

=$\frac{660}{7}$

= 94.28 $m^{2}$

CSA of the cone: *r*l,      but $l^{2} = r^{2} +h^{2}$

∴ l² = 3² + 4²

  l² = 9+16

  l=25 m

Now, *r*l

=$\frac{22}{7}*3*5$

=$\frac{330}{7}$

=47.14   $m^{2}$

Total area of Canvas required = 94.28 $m^{2}$ + 47.14 $m^{2}$

= 141.42 $m^{2}$