Parallelogram Angles
65
60
Make a conjecture (educated guess) about the
       opposite angles in a parallelogram
115
120
115
120
65
60
72
58
108
122
108
122
72
58
           Opposite angles
 of a parallelogram are congruent
Blue angles are ≅
Red angles are ≅
Fill in the missing parallelogram angles
63
117
Fill in the missing parallelogram angles
133
47
Fill in the missing parallelogram angles
108
72
Use the parallelogram to find x AND y
x =
80
100
y=
4x
40y
Use the parallelogram to find x AND y
x =
12y
120
y=
4x
60
65
Make a conjecture (educated guess) about the
       CONSECUTIVE angles in a parallelogram
60
115
120
115
120
65
60
72
58
108
122
108
122
72
58
65
CONSECUTIVE angles in a parallelogram = 180
60
115
120
115
120
65
60
72
58
108
122
108
122
72
58
Fill in the missing parallelogram angles
130
Fill in the missing parallelogram angles
110
Fill in the missing parallelogram angles
40
Use the parallelogram to find x AND y
x =
8y
100
y=
100
20x
Use the parallelogram to find x AND y
x =
30
3y
y=
10x
The end
The end
The end
Altres proves d'interés :

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