Advertisements
Advertisements
Question
A rectangular piece of dimensions 3 cm × 2 cm was cut from a rectangular sheet of paper of dimensions 6 cm × 5 cm (see the figure). Area of remaining sheet of paper is ______.
Options
30 cm2
36 cm2
24 cm2
22 cm2
Advertisements
Solution
A rectangular piece of dimensions 3 cm × 2 cm was cut from a rectangular sheet of paper of dimensions 6 cm × 5 cm (see the figure). Area of remaining sheet of paper is `bb(underline(24 cm^2))`.
Explanation:
Given dimensions of the bigger rectangle are 6 cm and 5 cm.
∴ Area of bigger rectangle = 6 cm × 5 cm = 30 cm2 ...[∵ Area of rectangle = length × breadth]
Also given, dimensions of the smaller rectangle are 3 cm and 2 cm.
∴ Area of smaller rectangle = 3 cm × 2 cm = 6 cm2
∴ Area of remaining sheet of paper = Area of bigger rectangle – Area of smaller rectangle
= (30 – 6) cm2
= 24 cm2
APPEARS IN
RELATED QUESTIONS
The side of a square is 4 cm. The length of a rectangle is 8 cm and its width is 2 cm. Find the perimeter and area of both figures.
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
Find the area of the rectangle whose sides are:
12 m and 21 m
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 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.
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?
The plan and measurement for a house are given in the following figure. The house is surrounded by a path 1 m wide.
Find the following:
- Cost of paving the path with bricks at rate of ₹ 120 per m2.
- Cost of wooden flooring inside the house except the bathroom at the cost of ₹ 1200 per m2.
- Area of Living Room.
4 squares each of side 10 cm have been cut from each corner of a rectangular sheet of paper of size 100 cm × 80 cm. From the remaining piece of paper, an isosceles right triangle is removed whose equal sides are each of 10 cm length. Find the area of the remaining part of the paper.
