Area
Definition: The area of a surface is the number of square units that it covers.
Equation: Area = Length x Width
Math Solution: Which has a greater area: a rectangle that is 5 cm X 25 cm or a square that is 15 cm X 15 cm?
Answer: A = L x W, so Rectangle - 5cm x 25cm = 125cm², Square 15cm x 15cm = 225cm², so the square has more area.