Question

CSA of a cylinder =2420 sq cm.If the radius of the base of the cylinder is 35 cm, find its height​

Answer 1

Answer:

The height of the Cylinder is 11 cm.

Step-by-step explanation:

$CSA=2πrh$

$2420=2*\frac{22}{7}*35*h$

$2420=2*22*5*h$

$h=\frac{2420}{2*22*5}$

$h=11cm$

Answer 2

Answer :

Given :

• The radius of a cylinder is 35 cm.
• The curved surface area of the cylinder is 2420 sq cm.

Find :

• The height of the cylinder.

Solution :

We know that,

• Formula of C.S.A of cylinder

$\large{\boxed{\sf{C.S.A \; of \; Cylinder=2 \pi r h}}}$

We have,

• C.S.A = 2420
• Radius = 35

So, we can easily find the height of the cylinder using the above formula :

$\rightarrow$ ${\sf{C.S.A \; of \; Cylinder=2 \pi r h}}$

$\rightarrow$ ${\sf{2420=2 × \dfrac{22}{7}× 35 × h}}$

$\rightarrow$ ${\sf{2420=2 × 22 × 5 × h}}$

$\rightarrow$ ${\sf{2420=220 × h}}$

$\rightarrow$ ${\sf{\dfrac{2420}{220}= h}}$

$\rightarrow$ ${\sf{11 = Height}}$

•°• The height of the cylinder having radius 35 cm and C.S.A 2420 sq cm is 11 cm respectively .

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