find the area of crossroad at right angle to each other through the centre of the field
Answers
Given : A field 80 x 80 m having 2 roads of width 3 m at right angle to each other through the centre of the field
To Find : area of both roads
Solution:
Length of each road = 80 m
Width of Each road = 3 m
Area of each road = 80 x 3 = 240 m²
Area of both roads = 2 * 240 = 480 m²
but there is common area of both roads
common area of both roads = 3 * 3 = 9 m²
Area of both roads = 480 - 9 = 471 m²
other way to find area is = 2 * 3 * (80 - 3) + 3 * 3
= 462 + 9
= 471 m²
Area of both roads = 471 m²
common area of roads = 9 m²
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