A triangle has base 9 cm and perpendicular height 4 cm. What is its area?
Note
For a triangle, area is half of base × height. Half of 9 × 4 is 18, so the area is 18 cm².
A triangle has base 9 cm and perpendicular height 4 cm. What is its area?
For a triangle, area is half of base × height. Half of 9 × 4 is 18, so the area is 18 cm².