If the perimeter is 39 what you have to do is 39 - 8.5 - 8.5 that will give you 22 and divide 22/2 and that gives you 11. So 11 is the length
Give me a minute. I’m trying to solve
Answer: 0
Step-by-step explanation: -6.80 + 6.80
Negative numbers act as subtracting
What we know:
(Also,
)
What we need to solve:
(This is equal to
)
How you have to subtract
with
to get:

Thus, the answer would be:
