Question

I need help so please .

Answer 1

Answer:

78 m

Step-by-step 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.

Answer 2

find c:

a² plus b² = c

72² plus 30²=c

5I84 plus 900

6084

now square root that

78

so C=78