What is the area of a triangle with base 6 units and height 4 units?

• A. 12 square units
• B. 24 square units
• C. 6 square units
• D. 9 square units

Answer: (A)

The area of a triangle comes from taking half of the product of its base and height, because a triangle fits inside a rectangle of the same base and height, occupying exactly half of that rectangle. With base 6 units and height 4 units, you compute (6 × 4) / 2 = 24 / 2 = 12. So the area is 12 square units. The other numbers come from common mistakes, like using the full base times height without dividing by two, which would give 24, or misapplying the division to get 6 or 9.