Question

Two crossroads, each of width 3 m, run at right
angles and parallel to the sides of a rectangular
plot of dimensions 80 m x 60 m. Find the area
of the roads.​

Answer 1

Answer:

The area of both roads = 411m²

Step-by-step explanation:

area of first road = road width × rectangle's length

= 3m×80m

= 240 m²

area of second road = road width × rectangle's width

= 3m×60m

= 180m²

area of square which is at middle = 3×3 m

= 9m²

total area of roads = area of first road + area of second road - square are of road

= 240m²+180m²-9m²

= 420m²-9m²

= 411m²

hope it helps.

Answer 2

Answer:

236 m²

Step-by-step explanation:

Area of first crossroad which is rectangular = l×b

Hence area = 72m × 2m= 144 m²

Area of 2nd crossroad whuch is rectangular = 48m× 2m

= 96 m²

Area of middle part which is square =2m×2m

= 4m^2

Area of crossroads= (144+96) m² - 4 m²

=240 m² - 4 m²= 236 m²