Question 1. Find the area of trapezium PQRS given in the figure.
Solution: Area of trapezium PQRS = ar (gm PQXS) + ar (rt ΔQRX)
= (4 x 4)cm^{2} + (1/2) x 3 x 4) cm^{ 2}
= 16 cm^{2} + 6 cm^{2}
= 22 cm^{2}
Question 2. Adjacent sides of a rectangle are 16 cm and 8 cm. Find the area of the rectangle.
Solution: Area of ractangle
= Length x Breadth= Product of adjacent sides
= 16 cm x 8 cm = 128 cm^{2 }
Question 3. A pair of parallel sides of a parallelogram measure 10 cm each. The perpendicular distance between them is 6 cm. What is the area of the parallelogram
Solution: Area of a gm = Base x Altitude
= 10 cm x 6 cm = 60 cm^{2}
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