Advertisements
Advertisements
प्रश्न
A rectangular field is 30 m in length and 22m in width. Two mutually perpendicular roads, each 2.5 m wide, are drawn inside the field so that one road is parallel to the length of the field and the other road is parallel to its width. Calculate the area of the crossroads.
उत्तर
Length of rectangular field (l) = 30 m and breadth (b) = 22m
width of parallel roads perpendicular to each other inside the field =2.5m
Area of cross roads = width of roads (Length + breadth) – area of middle square
= 2.5 (30 + 22) – (2.5)2
= 2.5 x 52 – 6.25 m2
= (130 – 6.25) m = 123.75 m2
APPEARS IN
संबंधित प्रश्न
In each of the following cases, ABCD is a square and PQRS is a rectangle. Find, in each case, the area of the shaded portion.
(All measurements are in metre).
(i)
(ii)
Find the perimeter of an equilateral triangle of side 9.8 cm.
Find the perimeter of a regular hexagon of side 6.5 cm.
The perimeter of a square is 60 m, find:
(i) its each side its area
(ii) its new area obtained on increasing
(iii) each of its sides by 2 m.
The cost of flooring a hall of ₹64 per square meter is ₹2,048. If the breadth of the hall is 5m, find:
(i) its length.
(ii) its perimeter.
(iii) cost of fixing a border of very small width along its boundary at the rate of ₹60 per square meter.
Each side of a square is 9 m long. Find its perimeter.
If we take 4 rounds around a field that is 160 m long and 90 m wide, what is the distance we walk in kilometers?
The sides of a triangle are 24.7cm, 20.4 cm, and 10.5 cm respectively. What is the perimeter of the triangle?
If every side of a rectangle is doubled, then its area becomes _______ times
A hedge boundary needs to be planted around a rectangular lawn of size 72 m × 18 m. If 3 shrubs can be planted in a metre of hedge, how many shrubs will be planted in all?
