Question

curved surface area of a right circular cylinder is 8.8m². if the radius of the base of the cylinder 1.4m. Find its height.







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Answer 1

Answer:

• 1 metre

Step-by-step explanation:

Given:-

• CSA of Cylinder = 8.8m²
• Radius of base of Cylinder ,r = 1.4 m

To Find:-

• Height of Cylinder ,h

Solution:-

we have to calculate the height of the cylinder. As we know that the formula to calculate the Curved Surface Area of Cylinder.

• CSA of Cylinder = 2πrh

where,

• π denotes 22/7
• r denotes radius
• h denotes height

Substitute the value we get

→ 8.8 = 2×22/7 × 1.4 × h

→ 8.8 = 44/7 × 1.4 × h

→ 8.8 = 8.8 × h

→ h = 8.8/8.8

→ h = 1 m

• Hence, the height of the Cylinder is 1 metre.

Answer 2

Answer:

Given :-

• CSA of cylinder = 8.8 m
• Radius of base = 1.4 m

To Find :-

Height of cylinder

Solution :-

As we know that

$\huge \bf \: CSA = 2\pi rh$

Here,

π denotes 22/7 or 3.14

R denotes Radius

H denotes Height

$\tt \: 8.8 = 2 \times \dfrac{22}{7} \times 1.4 \times h$

Assumed height as h

$\tt \: 8.8 = \dfrac{44}{7} \times 1.4 \: h$

$\tt \: 8.8 = 8.8h$

$\tt \: h = \dfrac{8.8}{8.8}$

$\tt \: h = 1$

Hence :-

Height of cylinder is 1 m

Learn More :-

TSA of cylinder = 2πr (h + r)

Volume of cylinder = πr²h

CSA of cylinder = 2πrh

Here,

π indicate 22/7

r indicate radius

h indicate height