Question

I need help so please .

Answer 1

find c:

a² plus b² = c

72² plus 30²=c

5I84 plus 900

6084

now square root that

78

so C=78

Answer 2

78 m

Explanation:

We need to use the Pythagorean theorem,
`a^(2) + b^(2) = c^(2)`.

Substitute in
`a` and
`b`.

`30^(2) + 72^(2) = c^(2)`

Simplify.

`900 + 5184 = c^(2)`

Add.

`6084 = c^(2)`

Square root both sides.

`78 = c`

The hypotenuse is 78 m long.