Advertisements
Advertisements
Question
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?
Solution
A line can be drawn as shown in this figure to divide the given rectangle into two equal rectangles.
Similarly, a horizontal line can also be drawn to divide the given rectangle into two equal rectangles.
Area of each smaller rectangle
= `1/2` × Area of the bigger rectangle
= `1/2 xx 20`
= 10 square cm
APPEARS IN
RELATED QUESTIONS
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?
Find the area of a rectangle whose length and breadth are 12 cm and 4 cm respectively.
If the cost of 1 sq m of a plot of land is 900 rupees, find the total cost of a plot of land that is 25 m long and 20 m broad.
The length of a rectangular park is 14 m more than its breadth. If the perimeter of the park is 200 m, what is its length? Find the area of the park
If length of a rectangle is halved and breadth is doubled then the area of the rectangle obtained remains same.
Find the area of the rectangle whose sides are:
12 m and 21 m
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 the 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 given figure. Find the area of the remaining portion.
Ramesh grew wheat in a rectangular field that measured 32 metres long and 26 metres wide. This year he increased the area for wheat by increasing the length but not the width. He increased the area of the wheat field by 650 square metres. What is the length of the expanded wheat field?
