25Area of a triangle
A triangle has a base of 14 cm and a height of 9 cm. Find its area.
The triangle's area is 63 cm². Using A = ½ × base × height, that's ½ × 14 × 9 = 7 × 9 = 63 cm². Check: doubling gives 126, matching 14 × 9.
A triangle has a base of 14 cm and a height of 9 cm. Find its area.
The triangle's area is 63 cm². Using A = ½ × base × height, that's ½ × 14 × 9 = 7 × 9 = 63 cm². Check: doubling gives 126, matching 14 × 9.