Question 106
The area of a parallelogram is 128 sq.cm and its altitude is twice the base. Then the base (in cms) is
Solution
Given, h = 2b
Area of parallelogram = base x height
$$\Rightarrow$$ b x h = 128
$$\Rightarrow$$ b x 2b = 128
$$\Rightarrow$$ b$$^2$$ = 64
$$\Rightarrow$$ b = 8 cm
$$\therefore\ $$Base of parallelogram = 8 cm
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