a rectangular field is 750 m long and 450 m broad has two roads in middle of it,which are 5 m wide, running at right angles to each other. one is along the breadth and the other along the length .find the area
find the area of what ??
perhaps this post from 2013 will help.
http://www.jiskha.com/display.cgi?id=1362572204
To find the area of the rectangular field, we need to subtract the area of the two roads from the total area of the rectangle.
First, let's calculate the area of the rectangular field:
Area of the rectangle = length × breadth
Area of the rectangle = 750 m × 450 m
Area of the rectangle = 337,500 m²
Now, let's calculate the area of the two roads:
Area of the road along the breadth = breadth × width
Area of the road along the breadth = 450 m × 5 m
Area of the road along the breadth = 2,250 m²
Area of the road along the length = length × width
Area of the road along the length = 750 m × 5 m
Area of the road along the length = 3,750 m²
Now, to find the total area, subtract the area of the two roads from the total area of the rectangle:
Total area = Area of the rectangle - Area of the road along the breadth - Area of the road along the length
Total area = 337,500 m² - 2,250 m² - 3,750 m²
Total area = 331,500 m²
Therefore, the area of the rectangular field is 331,500 square meters.