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Use Properties of Parallelograms
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Parallelograms Parallelograms are quadrilaterals where opposite sides are parallel. The opposite sides are also congruent. Which one is not a parallelogram?
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First Theorem…
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Second theorem…
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Find the missing sides b + 2 = 7 b = 5 a – 3 = 14 a = 17
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Find the values for t and e.
5e + 14 = 12e - 42 14 = 7e - 42 56 = 7e 8 = e 2t + 25 = 8t + 7 25 = 6t + 7 18 = 6t 3 = t
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What do we know about the opposite angles of a parallelogram?
They’re equal!!! m = 101
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Find b 106 = 9b - 2 108 = 9b 12 = b
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And another theorem
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Find all the missing angle measures
60 ̊ 120 ̊ 120 ̊
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Find a and b 10b +6
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Solve for x 7x x – 13 = 180 24x + 12 = 180 24x = 168 x = 7
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Find the missing variables
Which sides are congruent? 15 = 5a 3 = a b - 1 = 9 b = 10
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Solve the parallelogram
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Solve for the sides
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Solve for the angles
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