A trapezium (bases 8 cm & 12 cm, height 6 cm) is attached to a rectangle (8 cm × 10 cm) to form a wood panel. What is the total area?
Show answer & explanation
Correct answer: D
Explanation
Parallel sides of the trapezium = 8 cm, 12 cm; Height = 6 cm
Dimensions of the rectangle = 8 cm, 10 cm
Area of the trapezium = (1/2) × (Sum of parallel sides) × Height
Area of the rectangle = l × b
Area of the trapezium = (1/2) × (8 + 12) × 6 = 60
Area of the rectangle = 8 × 10 = 80
Total area = 60 + 80 = 140 cm²