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1 vote
Lea made two candles in the shape of right rectangular prisms. The first candle is 15 cm high, 8 cm long, and 8 cm wide. The second candle is 5 cm taller but has the same length and width. How much additional wax was needed to make the taller candle?

2 Answers

4 votes
256 cm more, because 8•8 or length • width =64•4 or how much more layers cm you need to add on is 256 to make it 5 cm taller in height.
User Rozy
by
7.2k points
2 votes
Volume of the first- (15)(8)(8)=960cm cubed
Volume of the second-(20)(8)(8)=1280
Difference=320
320 cm cubed were needed to make the taller candle
User Yurii Kyrylchuk
by
8.7k points
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