Finding Angle Between Two Points - Angles Worksheet With Answers

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Finding Angle between Two Points
Name:
Calculate the angle of the circle relative to (0,0).
A n s w e r s
First find the slope.
45.00°
(y
-y
)÷(x
-x
) = m
1.
2
1
2
1
(4,5)
(4,5)
(5-0)÷(4-0) = 1.25
63.43°
2.
Then find the arc tangent (aka. inverse
38.66°
tangent) of the slope.
3.
arctan(1.25) = 51.34°
6.34°
4.
1)
2)
3)
(9,9)
18.43°
5.
(3,6)
(5,4)
7.13°
6.
71.57°
7.
39.81°
8.
4)
5)
6)
48.37°
9.
83.66°
10.
(9,1)
(3,1)
(8,1)
81.87°
11.
18.43°
12.
7)
8)
9)
(8,9)
(2,6)
(6,5)
10)
11)
12)
(1,9)
(1,7)
(9,3)
1-10 92 83 75 67 58 50 42 33 25 17
Math
7
11-12 8
0

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