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)cm2 + (1/2) x 3 x 4) cm 2
= 16 cm2 + 6 cm2
= 22 cm2
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 cm2
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 cm2