Angle Addition Postulate
Sum of the parts equal the whole.
Find the m ∠ ABC
1.
A
X
50˚
30˚
C
B
2.
Find the value of y
A
70˚
X
y
30˚
C
B
3.
Find the value of y
A
70˚
X
30 + y
y
B
C
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If m ∠ MOP = 130˚, find the value of y.
4.
M
X
2y + 10
40
P
O
If m ∠ MOP = 130˚, find the value of y and m ∠ XOP
5.
M
X
2y + 10
3y + 20
O
6.
P
Find the value of x.
3x – 20
2x + 10
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