Answer:
300
Explanation:
First of all, a square's side lengths must be the same for it to be correctly labeled as a square.
The quadrilateral we need to find the area for here is a rectangle.
The area of a rectangle is defined as length × width. So, to answer this question, all we need to do is multiply the given dimensions.
20 × 15
= (2 + 10) × 15
= (2 × 15) + (10 × 15)
= 30 + 150
= 300