Question

4. Two cross-roads, each of 3 metres wide, run at right angle through the centre of a rectangular park
of 60 m by 42 m such that each is parallel to one of the sides of the rectangle. Find the area of the
remaining portion of the park. ​

Answer 1

Answer:

2223 sq m

Step-by-step explanation:

Area of long road = 60 × 3 = 180 sq m

Area of the small road = 42 × 3 = 126 sq m

Area of roads overlapping at crossing = 3 × 3 = 9 sq m

Area of both roads = 180 + 126 - 9 = 297 sq m

Area of whole park = 60 × 42 = 2520 sq m

Area of remaining portion of park = 2520 - 297 = 2223 sq m