Advertisements
Advertisements
प्रश्न
Divide the park shown in the figure of question 40 into two rectangles. Find the total area of this park. If one packet of fertilizer is used for 300 sq m, how many packets of fertilizer are required for the whole park?
उत्तर
Area of rectangle ABCD = Length × Breadth
= (150 × 100) m2
= 15000 m2 
And area of rectangle AGFE = Length × Breadth
= (270 × 180) m2
= 48600 m2
∴ Total area of the park = 15000 m2 + 48600 m2
= 63600 m2
Number of packets of fertilizer used for 300 m2 = 1
∴ Number of packets of fertilizer used for 63600 m2 = `63600/300` = 212
APPEARS IN
संबंधित प्रश्न
If the length and breadth of a rectangle are doubled, how many times the perimeter of the old rectangle will that of the new rectangle be?
The area of a rectangle is 102 sqcm. If its length is 17 cm, what is its perimeter?
Find the area of a rectangle whose length and breadth are 12 cm and 4 cm respectively.
The side of a square is 6 cm. The length of a rectangle is 10 cm and its breadth is 4 cm. Find the perimeter and area of both the square and rectangle
Find the area of the rectangle whose sides are:
3 cm and 4 cm
The length and breadth of a rectangle are as given below:
17m and 3m
By splitting the following figure into rectangles, find their areas (The measures are given in centimetres).
People of Khejadli village take good care of plants, trees and animals. They say that plants and animals can survive without us, but we can not survive without them. Inspired by her elders Amrita marked some land for her pets (camel and ox) and plants. Find the ratio of the areas kept for animals and plants to the living area.
A wall of a room is of dimensions 5 m × 4 m. It has a window of dimensions 1.5 m × 1 m and a door of dimensions 2.25 m × 1 m. Find the area of the wall which is to be painted.
In a park of dimensions 20 m × 15 m, there is a L shaped 1 m wide flower bed as shown in the figure. Find the total cost of manuring for the flower bed at the rate of Rs 45 per m2.
