Advertisements
Advertisements
प्रश्न
The diagonal of a square is 15 m; find the length of its one side and perimeter.
Advertisements
उत्तर
Diagonal of square = 15 m
Let side of square = a
a2 + a2 = (15)2 = 225
a2 = `225/2` = 112.50
a = `sqrt(112.50)` = 10.6 m
Perimeter = 4 × a = 10.6 × 4
= 42.42 m
APPEARS IN
संबंधित प्रश्न
The diagonal of a square is 12 cm long; find its area and length of one side.
Each side of a square is 7 m long. Find its perimeter
1 sq m = ______ sq cm.
Tahir measured the distance around a square field as 200 rods (lathi). Later he found that the length of this rod was 140 cm. Find the side of this field in metres.
A piece of string is 30 cm long. What will be the length of each side if the string is used to form a square?
Sweety runs around a square park of side 75 m. Bulbul runs around a rectangular garden with a length of 60 m and a breadth of 45 m. Who covers less distance?
Avneet buys 9 square paving slabs, each with a side of `1/2` m. He lays them in the form of a square.
- What is the perimeter of his arrangement [Fig (i)]?
- Shari does not like his arrangement. She gets him to lay them out like a cross. What is the perimeter of her arrangement [(Fig (ii)]?
- Which has greater perimeter?
- Avneet wonders if there is a way of getting an even greater perimeter. Can you find a way of doing this? (The paving slabs must meet along complete edges i.e. they cannot be broken.)
In the following figure, area of (i) is the same as the area of (ii).
 |
 |
| (i) | (ii) |
In the following figure, if (ii) is divided into squares of unit length, then its area is 13 unit squares.
|
| (ii) |
What is the formula for the perimeter of a square with each side of length s units?
