If the base of a parallelogram is (y+8), altitude to the base is (y – 6) and the area is
(y
2– 8), find the actual area of a parallelogram.
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Ans:392sq. units
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Answer:
area of parallelogram = base x height
y^2 - 8 = (y + 8)(y - 6)
y^2 - 8 = y^2 + 2y - 48
2y = 48 - 8
2y = 40
y = 20
area = y^2. - 8
= 20^2 - 8
=. 400 - 8
= 392 sq.unit
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