Area of triangle with base 10 and height 6?

Explanation

• Area of a triangle = ½ × base × height = ½ × 10 × 6 = 30.
• Option D 60 is base × height, which is the area of a rectangle sharing the same base and height.
• A triangle covers exactly half of that rectangle, and that is where the ½ in the formula comes from.
• Any side may be taken as the base, provided the height is measured at a right angle to it.
• If the base and height are in centimetres the area is in square centimetres, so the full answer is 30 cm².