Answer:
83
Step-by-step explanation:
Order matters in:
Triangle JKL congruent to triangle MNP.
This says:
JK=MN
KL=NP
LJ=PM
So we need to find JK+KL+JL as a numerical value.
We also know from:
"Triangle JKL congruent to triangle MNP"
that angle K is congruent to angle N.
This means 20x-10=15x+15.
Add 10 on both sides:
20x=15x+25
Subtract 15x on both sides:
5x=25
Divide 5 on both sides:
x=25/5
x=5 .
JK=4x-4=4(5)-4=20-4=16.
KL=5x+1=5(5)+1=25+1=26.
So JK+KL+JK (which is just the sums of all the side measurements) is:
16+26+41
(16+26)+41
(42) +41
42+41
83
So the perimeter of the pool is 83 ft.
83 goes in the blank.
