3 because length times width = area right. so 3x3=9.
We are going to start with the triangle that is labeled.
a triangle is equal to 180 degrees
So we have the first triangle labeled- MJL-50, MLJ-65
add those together then subtract by 180
65+50=115 subtract by 180
=65 degrees
Next triangle kinda already gave us some clues
JLK-70
and it states that JM=KL
we solved that it is 65
so all we have to do it solve fro JKL
65+70=135 subtract that by 180
=45- JKL
Y would equal -28 when X equals 20.
Since they vary directly, all you do is divide 20 by -5 to find the variation between X and Y. You will get -4 which you multiply to 7, to get you final answer. Thus making Y equal to -28.
I hope this helps!
Answer:
2) 90-62=28°
3) 180-108=72°
4) 180-89=91°
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