Please help me with this question.
PUZZLING PRISM:
The areas of three faces of a rectangular prism are 63 cm2, 56 cm2 and 72 cm2. What is the volume of the prism?
What I know:
Volume= LxWxH
Area = LxW
Ps. reply asap. thank you very much for your help and your time!
Hello, puppy_wish!
This can be solved with "normal" algebra
. . but there is a cute solution . . .
The areas of three faces of a rectangular prism are 63 cm², 56 cm² and 72 cm².
What is the volume of the prism?
Let the length, width, height be:
We are told that: .
Multiply the three equations: .
and we have: .
Therefore: .
I like this solution . . . I hope you do.
We answered the questi0on without finding and