Question

Find the diagonal of the rectangular prism.

second diagonal
3 m
5 m
6 m
first diagonal

Answer 1

First diagonal: 7.874

Second diagonal: 8.3666

Explanation:

We use the Pythagorean Theorem to find these.

First diagonal = 5²+6²=c²

25+36=c²

61=c²

√61=c

c=7.874

Then we use that to find the second diagonal.

7.874²+3²=c²

61+9=c²

70=c²

√70=c

c=8.3666