A triangle has a base of 12 units. If its area is 48 square units, and its height is increased by 25% while the base remains constant, what is the new area of the triangle?

✓ Correct Answer: Option B

Area = (1/2) * base * height. 48 = (1/2) * 12 * h, so h = 8 units. If height increases by 25%, new height = 8 * 1.25 = 10 units. New area = (1/2) * 12 * 10 = 60 square units.