Question

if the original length and width of the paper is twice its current length and width, calculate the original area, in cm, of the paper in terms of a and b.​

Answer 1

`4a^(2) + 4ab`

Explanation:

as I can see in the image posted by you,

current length = a + b

current width = a

according to the condition, original paper length and width was twice of their current values,

original length = 2(a+b)

original width = 2a

therefore,

original area = 2(a+b) * 2a

original area = 4(a+b)a

original area =
`4a^(2) + 4ab`

Hopefully you found the answer helpful