Question

What is the length of the diagonal of a 10cm by 15cm rectangle?

Answer 1

The diaginal has `5sqrt(13)` cm.

Explanation:

After using Pytagoras Theorem you get:

`d^2=10^2+15^2`

`d^2=100+225`

`d^2=325`

`d^2=25*13`

`d=5sqrt(13)`