We can use trigonometry. The cosine of 15 will be the side adjacent to the 15-degree side (the one we are looking for) divided by 20, the hypotenuse. As cos(15) is about .966, we get 19.32 as the side we are looking for.
Both the angles will be 105°
Just add up the given angles, subtract the result by 360, and divide by 2.
Step-by-step explanation:
y=2x−3
y=x+2
y=-3
x=3/2
for the second line
y=2
x=-2
Answer:
54
Step-by-step explanation:
Each vertex of the pentagon has an angle of 108 degrees. So, x = 108/2 = 54
Area = length x width
that means
width = area / length
divide 103 1/8 by 12 1/2
I get 8 1/4
