Question

ABCD is a parllelogram AE is perpendicular to DC and CF is perpendicular to AD. If AB = 16cm, AE=8cm and CF=10cm. Find AD

Answer 1

AB=CD=16cm

area of parallelogram=b×h

area of ABCD=CD×AE=AD×CF

16×8=AD×10

128=AD×10

12.8=AD

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Answer 2

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AB = CD = 16 cm

Area of parallelogram
=> b × h

Area of ABCD
=> CD × AE = AD × CF

16 × 8 = AD × 10

128 = AD × 10

AD = 12.8...✔

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