# In a parallelogra A = (3x +12)°

B = (2x -32) °

A + B = 180° (supplementary angles of the gram)

(3x +12) + (2x -32) = 180

5x – 20 = 180°

5x = 200°

x= 40°

A = (3 × 40) +12 = 120 + 12

= 132

C = 132° (opposite s are congruent)

Similarly, B = 2× 40  32

= 80 - 32
°

48°

D =  48°(opposite ∠s are congruent)

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