Question

A square field of side 800 m has two crossroads
that cut at right angles through the centre of the
field. Find the area of the field, excluding the
crossroads in hectares, given that the width of
both the roads are 4 m and they are parallel to
the sides of the field.​​

Answer 1

Answer:

635,216

Step-by-step explanation:

Area of square = 800^2 = 640,000

area of cross section = 4^2 = 16

area of road = 2(800x4) = 6400

6400-16 = total area covered by the road = 6,384

640,000 - 6,384= 633,616 sqm

Answer 2

Answer:

area of square= 800^2= 640,000

area of cross section= 4^ 2 =16

area of Road = 2 (800 × 4) = 6400

6400-16 total area covered by road

= 6,384

Step-by-step explanation:

640,000 - 6,384 =633,616