Find the volume of the cylinder in terms of pi. Height 11m Radius 3.4m
2 answers:
Answer:
Volume of cylinder =127.16 pi =399.48 cubic meter.
Step-by-step explanation:
Given : Height 11m Radius 3.4m.
To find : Find the volume of the cylinder in terms of pi.
Solution : We have given that Height = 11 m.
Radius = 3.4m.
Volume of cylinder = pi * * height.
Plugging the values of radius = 3.4 m and height = 11 m
Volume of cylinder = pi * * 11.
Volume of cylinder = pi * 11.56 * 11
Volume of cylinder =127.16 pi = 399.48 cubic meter.
Therefore, Volume of cylinder =127.16 pi =399.48 cubic meter.
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Answer:
Water needed for pool = 486 cubic feet
Plastic liner required for the pool = 298.3 feet
Step-by-step explanation:
Top view of the pool is a composite figure, having one rectangle and a trapezoid.
1). Water needed for the pool = volume of the pool
Volume of the pool = Area of the base × Depth
= (Area of the rectangle + Area of the trapezoid)× depth
Area of the trapezoid =
=
= 105 ft²
Area of the rectangle = Length × width
= 11 × 1.5
= 16.5 ft²
Now, volume of the pool = (105 + 16.5) × 4
= 121.5 × 4
= 486 cubic feet
b). Liner required = surface area of the pool excluding top
= Surface area of the walls + Area of the pool base
= (Perimeter of the pool) × depth + area of the base
= (12 + 11 + 1.5 + 10.7 + 9)×4 + 121.5
= 176.8 + 121.5
= 298.3 square feet
Therefore, amount of water required = 486 cubic feet
liner needed = 298.3 square feet
