1.

altitude DE and BF of parallelogram ABCD are 4 cm and 8cm long respectively one side ADis 6 cm long find the perimeter of parallelogram ABCD.

Answer»

Area of parallelogram=6*8=48cm²

Area of parallelogram=AB*4=48cm²AB=48/4=12cm

Perimeter=6+6+12+12=36cm



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