Question

Find the length of the third side. If necessary, round to the nearest
tenth.
20
28

Answer 1

34.4

Step-by-step explanation:

Here, we need to do 28·28 + 20·20

Then, we get 1,184 when we do that, then we square, which gives us 34.4

Answer 2

19.6

Explanation:

missing side = a

a² + b² = c²

a² + 20² = 28²

a² + 400 = 784

a² = 384

`√(a^2) =√(384)`

a = 19.59

Rounded to nearest tenth: 19.6