Keenan wants to make a paperweight at a pottery class. He designs a pyramid-like model with a base area of 80 square centimetres and a height of 7.5 centimetres. The density of the clay he is using is 1.7 grams per cubic centimetre.
What is the weight of Keenan's paperweight?
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Answers
Answer:
60×1.7=102grams
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Given : Keenan wants to make a paperweight at a pottery class. He designs a pyramid-like model with a base area of 80 square centimetres and a height of 7.5 centimetres. The density of the clay he is using is 1.7 grams per cubic centimetre.
To find : weight of Keenan's paperweight
Solution:
Volume of Square pyramid = ( Base area) * (height)/3
Base area = 80 cm²
height = 7.5 cm
Volume of Paper weight = 80 * 7.5/3
=> Volume of Square pyramid = 200 cm³
Density of the clay = 1.7 g / cm³
Density = Mass / Volume
=> Mass = Volume * Density
=> Mass = 200 * 1.7
=> Mass = 340 g
weight of Keenan's paperweight = 340 g
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