In a parallelogram, AB = 10 cm. The length of altitude on AB and AD are 7 cm and 8 cm. Find AD.
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Using the formula of area of ||gm
1/2 × AB × altitude1= 1/2 ×AD × altitude2
AB×altitude1=AD×Altitude2
10×7=AD×8
AD= 70/8 = 8.75
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