Question

if the base and altitude of a parallelogram are doubled what will happen to its area?

Answer 1

As

area_of_parallelogram = base x height

if they are both doubled then:

new_area = (2 x base) x (2 x height)

= 4 x (base x height)

= 4 x area_of_parallelogram

Thus, if the base and height of a parallelogram are [both] doubled, the area is quadrupled.

Answer 2

Area of a parallogram= bh
If b and h are doubled than
the area will increase 4 times
Let area be x
After changing area will be 4x

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