Question

Help me with this!!!!!!

Answer 1

Answer:

16.3

Step-by-step explanation:

You can use pynthagoras theorem.

And round it to nearest tenth...

hope i helped

Answer 2

Answer:

16.3 feet

Step-by-step 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: $\sqrt{a} = \sqrt{40}$  ->  a = 6.3

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