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Trapezium area (1/2)(a + b)h: area, cost or parallel sides

This type of question, asked 2 times: 18 Sep 2025 S2, 23 Sep 2025 S3. All 3 questions below, oldest first.

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  1. Question 1

    18 Sep 2025 S2

    69
    In a trapezoid, the two parallel sides are in the ratio 3:5. If the height of the trapezoid is 10 cm and its total area is 240 cm2240\ \text{cm}^2, determine the lengths of the parallel sides.

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  2. Question 2

    23 Sep 2025 S3

    58
    A farmer’s land is two adjoining trapezoids: T1 with bases 70 m & 50 m, height 20 m; T2 with bases 50 m & 30 m, height 15 m. Land costs ₹60/m260/\text{m}^2. What is the total land cost?

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  3. Question 3

    23 Sep 2025 S3

    57
    A banner is shaped like a trapezium with bases 5 m and 3 m, and height 4 m. If printing costs ₹250/m2250/\text{m}^2, what is the total cost?

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