Question

1. Find the volume of a cylinder with a radius of 0.5 mm and a height of 1.7 mm. Round to nearest tenth

2. Find the volume of a cylinder with a diameter of 4 mm and a height of 8 mm. Round to nearest tenth.

3. Find the volume of a cone with a diameter of 11 mm and a height of 11.2 mm. Round to the nearest tenth.
Please help me quickly

Answer 1

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Formala:
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Volume of a cylinder = πr²h
Volume of a cone = 1/3 πr²h

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Question (1):
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Volume of the cylinder = π (0.5)² (1.7) = 1.3mm (nearest tenth)

Answer:1.3mm

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Question (2):
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Radius = 4 ÷ 2 = 2mm
Volume of the cylinder = π (2)² (8) = 100.5mm (nearest tenth)

Answer: 100.5mm

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Question (3):
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Radius = 11 ÷ 2 = 5.5 mm
Volume of the cylinder = 1/3 π (5.5)² (11.2) = 354.8mm (nearest tenth)

Answer: 354.8mm