Question

Help me with this!!!!!!

Answer 1

16.3 feet

Explanation:

find the value of the missing side using the pythagorean theorem -

`a^(2) + b^(2) = c^(2)` ->
`3^(2) +a^(2) =7^(2)` -> 9 +
`a^(2)` = 49 ->
`a^(2)` = 40 -> take the square root of both sides:
`√(a) = √(40)` -> a = 6.3

then you add it with the other two sides to get the perimeter: 6.3 + 3 + 7 = 16.3

Answer 2

16.3

Explanation:

You can use pynthagoras theorem.

And round it to nearest tenth...

hope i helped