Rosa makes candles to sell.
Each candle is in the shape of a cuboid of height 8 cm.
The base of each candle is a square of perimeter 20 cm.
Rosa needs to know the volume of one candle.
Work out the volume of one candle.
Remember to give units with your answer.
Answers
Given:
Rosa makes candles to sell.
Each candle is in the shape of a cuboid of height 8 cm.
The base of each candle is a square of a perimeter of 20 cm.
Rosa needs to know the volume of one candle.
To find:
Work out the volume of one candle.
Remember to give units with your answer.
Solution:
Let "a" cm be the side of the base of the candle.
We know,
The perimeter of the square-shaped base of each candle = 20 cm
∴ 4a = 20
⇒ a = 5 cm
The height of each cuboidal candle, h = 8 cm
Also,
Now, by using the above formulas, we get
The volume of each candle made by Rosa is,
= a² × h
= 5² × 8
= 200 cm³
Thus, the volume of one candle is → 200 cubic centimetres.
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