Diameter of a cylindrical vessel is 7cm, height of the vessel is 21cm. Find the CSA of a cylindrical vessel?
Answers
Answer:
462 cm²
Step-by-step explanation:
Height = 21 cm
Diameter =7 cm
Therefore,
Radius = 7/2 = 3.5 cm
Curved Surface Area (CSA) = 2πrh
CSA of Cylinder
= 2 × 22/7 × 3.5 × 21
= 2 × 22 × 3.5 × 3
= 462 cm²
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Given :
- Diameter of Cylinderal vessal = 7cm
- Height of Cylinderal vessal = 21cm
To Find :
- CSA of Cylinderal Vessal
Solution :
Here we are given Diameter of the cylindrical vessal. So, Firstly we will the Radius of the Cylinderal Vessal.
- Diameter = 7cm
- Radius = 7/2 cm
Now, Let's Find CSA of cylinder.
CSA of cylinder = 2πrh
⟿ CSA of cylinder = 2 × 22/7 × 7/2 × 21
⟿ CSA of cylinder = 2 × 11 × 21
⟿ CSA of cylinder = 22 × 21
⟿ CSA of cylinder = 462cm²
∴ CSA of cylinder is 462cm²