Question

Find the length of the third side. If necessary, round to the nearest tenth-
5
3

Answer 1

Since this is a right triangle, you can use the Pythagorean theorem. (3,4,5 is also a Pythagorean triple.)

See details:

Answer 2

The third side is 4cm

Explanation:

`{3}^(2) + {a}^(2) = {5}^(2)`

a=25-9

a=16

a=4