Area — O/L Mathematics

How do I practise Area?

1 question with a worked solution

1. A trapezium has parallel sides of lengths 12 cm and 18 cm. If the perpendicular distance between the parallel sides is 8 cm, what is the area of the trapezium?
   1. A) 120 cm²
   2. B) 96 cm²
   3. C) 144 cm²
   4. D) 240 cm²
   Check my answer

   Correct answer: A) 120 cm²

   The area of a trapezium is given by A = 1/2 × (a + b) × h, where a and b are parallel sides and h is height. A = 1/2 × (12 + 18) × 8 = 1/2 × 30 × 8 = 120 cm².

   Show worked solution

   Step 1: Formula: Area = 1/2 × (sum of parallel sides) × perpendicular height. Step 2: Sum of parallel sides = 12 + 18 = 30 cm. Step 3: Multiply by height and halve: 1/2 × 30 × 8 = 15 × 8 = 120 cm². Answer: 120 cm².
   Modelled on: the O/L Mathematics examination pattern

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Where does Area fit in the syllabus?

Grade 10 · Term 1