2. Length of the two parallel sides of a trapezium are 8.5 cm and 11.5 cm respectively and its height is 4.2 cm ,find its area. *
44 cm²
42 cm²
84 cm²
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The area of the trapezium is 42 sq. cm.
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Length of the two parallel sides of a trapezium are 8.5 cm and 11.5 cm and its height is 4.2 cm.
Area of a trapezium = (1/2) x sum of lengths of parallel sides x height
= (1/2) x (8.5 + 11.5) x 4.2
= (1/2) x 20 x 4.2
= 10 x 4.2
= 42 sq. cm
∴ The area of the trapezium is 42 sq. cm.
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