Question

What is the area rectangle ABCD?

Answer 1

Hey there :)

We know that ABCD ≡ HGJK
This means both of the shapes have the same size.

We know the length = 18 in and the width = 11 in

We know the area formula of a rectangle
Area = length × width
         = 18 × 11
         = 198 in²

Answer 2

Since they are congruent rectangles, they have the same side lengths.
The area of a rectangle is width times height

11(18)=198 square inches.