Advertisements
Advertisements
प्रश्न
In the following figure, ABCD is a square with AB = 15 cm. Find the area of the square BDFE.
Advertisements
उत्तर
Given, ABCD is a square and AB = 15 cm
∴ Diagonal of square ABCD = `sqrt(2)a`
= `sqrt(2) xx 15`
= `15sqrt(2)`cm
From the figure, diagonal of square ABCD is the side of square BDEF
∴ Area of the square BDFE = (Side)2
= `(15sqrt(2))^2`
= `15 xx 15 xx sqrt(2) xx sqrt(2)`
= 225 × 2
= 450 cm2
APPEARS IN
संबंधित प्रश्न
Find the area of a square plot of side 8 m.
The length of the side of the square is given below. Find its area.
18 cm
Divide the figure given alongside four parts in such a way that the area and shape of each part are the same. Colour the parts in different colours.
The table given below contains some measures of the square. Find the unknown values.
| Side | Perimeter | Area |
| ? | ? | 49 sq.feet |
The length of the side of a square is given below. Find its area
16 cm
Amita wants to make rectangular cards measuring 8 cm × 5 cm. She has a square chart paper of side 60 cm. How many complete cards can she make from this chart? What area of the chart paper will be left?
Five square flower beds each side 1 m are dug on a piece of land 5 m long and 4 m wide. What is the area of the remaining part of the land?
Area of a square of side 6 m is equal to the area of ______ squares of each side 1 cm.
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]
