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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 |