class 9 maths question paper plzz answer it... I will be thankful to u...
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Answer:
12.8 cm
Step-by-step explanation:
Given:
AB = DC = 16 cm {Opposite sides are equal in length}
AE = 8 cm
CF = 10 cm.
∴ Area of parallelogram = base * height
⇒ AB * AE = AD * CF
⇒ 16 * 8 = AD * 10
⇒ 128 = 10AD
⇒ 128/10 = AD
⇒ 12.8 = AD.
Therefore, AD = 12.8 cm.
Hope it helps!
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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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