Pets Coloring Printable Worksheets for Kids -
CLASS8
The Volume of a right circular cylinder is 1100cm3 and the radius of its base is 5 cm. Calculate its curved surface area.
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6 Replies
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Given
Volume of Right Circular Cone = 1100cm³
Radius of base = 5cm
To Find
Curve surface area
Formula we use
Volume of Cone =1/3πr²h
Curve surface area = πrh
Where , r = Radius of Base , h = Height of cone
Now unknown value is Height of cone we get height of cone from volume formula
1100cm³ = 1/3π(5cm)²h
1100cm³ × 3 = π × 25cm² × h
3300cm³ = π × 25cm² × h
3300cm³ / 25cm² = π×h
132cm/Ï€ = h
Now we get value of h so we Easily Find curve surface area
Curve surface area = πrh
Curve surface area = π×5cm×132cm/π
Curve surface area = 5cm × 132cm
Curve surface area = 660cm²Answer
- Curve surface area = 660cm²
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Given
Volume of Circular Cylinder = 1100cm³
Radius of base = 5cm
To Find
Curve surface area
Formula we use
Volume of Cylinder =πr²h
Curve surface area = 2Ï€rh
Where , r = Radius of Base , h = Height of cone
Now unknown value is Height of cone we get height of Cylinder from volume formula
1100cm³ = π(5cm)²h
1100cm³= π × 25cm² × h
1100cm³ = π × 25cm² × h
1100cm³ / 25cm² = π×h
44cm/Ï€ = h
Now we get value of h so we Easily Find curve surface area
Curve surface area = 2Ï€rh
Curve surface area = 2π×5cm×44cm/π
Curve surface area = 10cm × 44cm
Curve surface area = 440cm²Answer
Curve surface area = 440cm²
