3*3+4*4=x*x and 9+16=25 so x is 5 and then add other sides so 5+8+4+5
Answer:
2a +2b +4
Step-by-step explanation:
The perimeter is the sum of the lengths of the three sides. If x represents the length of the third side, then ...
(3a +8) +(5a +b) +x = (10a +3b +12)
Subtracting from the equation everything on the left side that is not x, we get ...
x = (10a +3b +12) -(3a +8) -(5a +b)
= a(10 -3 -5) +b(3 -1) +(12 -8)
= 2a +2b +4
The length of the third side is 2a +2b +4.
Make the question more clear i cant understand it :/ include all the information from the actual question to get the best answer.
It equals 0.1365853659
you may round as needed
Im pretty sure your answer is gonna be A) 15.5 .
