A trapezium has parallel sides 9 cm and 21 cm, and height 10 cm. What is its area?
Note
For a trapezium, area = ½ × (sum of parallel sides) × height. So ½ × (9 + 21) × 10 = 150 cm².
A trapezium has parallel sides 9 cm and 21 cm, and height 10 cm. What is its area?
For a trapezium, area = ½ × (sum of parallel sides) × height. So ½ × (9 + 21) × 10 = 150 cm².