Advertisements
Advertisements
प्रश्न
Calculate the area of shaded region in the following figure, where all of the short line segments are at right angles to each other and 1 cm long.
Advertisements
उत्तर
Length of the larger rectangle = 1 × 9 cm = 9 cm
Breadth of the larger rectangle = 1 × 9 cm = 9 cm
∴ Area of shaded region = Area of larger square – Area of 41 small identical square
= 9 × 9 – 41 × 1 × 1
= 81 – 41
= 40 cm2
APPEARS IN
संबंधित प्रश्न
The perimeter of a rectangular sheet is 100 cm. If the length is 35 cm, find its breadth. Also find the area.
The length of the side of the square is given below. Find its area.
12 metre
its area is ____________ square cm.
The side of a square is 5 cm. How many times does the area increase, if the side of the square is doubled?
The area of each square on a chess board is 4 sq cm. Find the area of the board.
- At the beginning of game when all the chess men are put on the board, write area of the squares left unoccupied.
- Find the area of the squares occupied by chess men.
Guess which animal’s footprint will have the same area as yours. Discuss.
Rani bought a new field that is next to one she already owns (see figure). This field is in the shape of a square of side 70 m. She makes a semi-circular lawn of maximum area in this field.
- Find the perimeter of the lawn.
- Find the area of the square field excluding the lawn.
In the following figure, ABCD is a square with AB = 15 cm. Find the area of the square BDFE.
Find the area of the shaded portion in a circle whose radius is 7 cm (see figure).
[Hint: Four right-angled triangles joined at right angles to form a square]
If a square has an area of 36 sq cm, what is the length of its side?
