Advertisements
Advertisements
प्रश्न
A rectangular field is 48 m long and 12 m wide. How many right triangular flower beds can be laid in this field, if sides including the right angle measure 2 m and 4 m, respectively?
Advertisements
उत्तर
Given, dimenstions of a rectangular field = 48 m × 12 m
And dimensions of a right angled triangle = 2 m × 4 m
∴ Number of right triangular flower beds = `"Area of filed"/"Area of right angled triangle"`
= `(48 xx 12)/(1/2 xx 2 xx 4)` ...`[(∵ "Area of rectangle" = "Length" xx "Breadth and Area"),("of a right angled triangle" = 1/2 xx "Height" xx "Breadth")]`
= 144
APPEARS IN
संबंधित प्रश्न
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
Is this shape half of the big rectangle?
Hmmm...... So its area is ______ square cm.
Here is a rectangle of an area of 20 square cm.
Draw one straight line in this rectangle to divide it into two equal rectangles. What is the area of each of the smaller rectangles?
The length and breadth of a rectangle are as given below:
9m and 6m
Split the following shape into rectangle and find their area. (The measures are given in centimetres)
A carpet of size 5 m × 2 m has 25 cm wide red border. The inner part of the carpet is blue in colour (see figure). Find the area of blue portion. What is the ratio of areas of red portion to blue portion?
A 10 m long and 4 m wide rectangular lawn is in front of a house. Along its three sides a 50 cm wide flower bed is there as shown in the following figure. Find the area of the remaining portion.
A school playground is divided by a 2 m wide path which is parallel to the width of the playground, and a 3 m wide path which is parallel to the length of the ground (see figure). If the length and width of the playground are 120 m and 80 m respectively, find the area of the remaining playground.
In a park of dimensions 20 m × 15 m, there is a L shaped 1 m wide flower bed as shown in the following figure. Find the total cost of manuring for the flower bed at the rate of Rs 45 per m2.
What is the formula to calculate the area of a rectangle?
