I think the answer is 90 degrees
Hey there
<span>Quadrilateral "four sided shape"</span>
A Quadrilateral has four-sides and<span> it is </span>2-dimensional shape
Squares and quadrilaterals have
4 sides
4 vertices
Hope this helps
Answer:

Step-by-step explanation:
step 1
Find the slope
The formula to calculate the slope between two points is equal to

we have
the points (−1,12) and (1,2)
substitute



step 2
we know that
The equation of the line in slope intercept form is equl to

where
m is the slope
b is the y-intercept
we have


substitute in the linear equation and solve for b


therefore

Answer:
C = 10(pi) yards
A = 25(pi) yards
Step-by-step explanation: