we can subtract the trapezium (white part) formed after from the trapezium (including white and grey) to get area of striped part
area of trapezium is
where $a$ and $b$ are parallel sides.
for bigger trapezium, $h=4$ parallel sides are $5$ and $5$
hence area is $\frac{4(5+5)}{2}=20$
similarily area of white trapezium, $\frac{4(3+3)}{2}=12$
and area of striped part is $20-12=8$
Linear. Each increase of 1 in x means a decrease of 3 in y, so it has a consistent slope of -3
Answer:
![W = 13.29^\circ](https://tex.z-dn.net/?f=W%20%3D%2013.29%5E%5Ccirc)
Step-by-step explanation:
Given
![\sin(W) = 0.23](https://tex.z-dn.net/?f=%5Csin%28W%29%20%3D%200.23)
Required
Find W
Take arc sin of both sides
![W = \sin^{-1}(0.23)](https://tex.z-dn.net/?f=W%20%3D%20%5Csin%5E%7B-1%7D%280.23%29)
Using a calculator
![W = 13.29^\circ](https://tex.z-dn.net/?f=W%20%3D%2013.29%5E%5Ccirc)