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Step-by-step explanation:
14. Fill in the blanks:
(i) Area of triangle = 1/2 × base × height
(ii) Area of parallelogram = base × height
(iii) Area of trapezium = 1/2 × (a + b) × height
- a and b are parallel sides.
- height is the distance b/w them.
(iv) The parallel sides of a trapezium are 14 cm and 18 cm and the distance b/w them is 8 cm. The area of the trapezium is 128 cm².
⇒ 1/2 × (a + b) × height(distance b/w parallel sides)
⇒ 1/2 × (14 + 18) × 8
⇒ 1/2 × (32) × 8
⇒ 16 × 8
∴ 128 cm² is the area of the trapezium.
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