When one side of a rectangle is increased by 5cm and the width remains unchanged, the area will be increased by 25 square centimeters. What is the area of the original rectangle? /|————————| / | | /---|————————| ←5cm→| ← 16cm →

When one side of a rectangle is increased by 5cm and the width remains unchanged, the area will be increased by 25 square centimeters. What is the area of the original rectangle? /|————————| / | | /---|————————| ←5cm→| ← 16cm →

Width of original rectangle = height of triangle = 25x2 / 5 = 10 (CM)
The original area of the rectangle is: 10x16 = 160 (square centimeter)