W*l=A
w=8
l=3x
8*3x= A
That would be the equation
C- 8.7. Divide 116.58 by 13.4 to get 8.7
S O/H C A/H T O/A
You're finding cos - so take the adjacent side and hypotenuse which is 10 over 12
Then take 10 divided by 12 cos
A = 0.1
The Area of a piece of paper