Advertisements
Advertisements
Question
The side of a square is 10 cm. If its side is tripled, then by how many times will its perimeter increase?
Options
2 times
4 times
6 times
3 times
Advertisements
Solution
3 times
Explanation;
Hint:
30 × 4 = 120
= 3 × 40
APPEARS IN
RELATED QUESTIONS
A path of uniform width, 3 m, runs around the outside of a square field of side 21 m. Find the area of the path.
Your garden is in the shape of a square of side 5 m. Each side is to be fenced with 2 rows of wire. Find how much amount is needed to fence the garden at ₹ 10 per metre
Draw a square B whose side is twice of the square A. Calculate the perimeter of the squares A and B
A square shaped park ABCD of side 100 m has two equal rectangular flower beds each of size 10 m × 5 m (Figure). Length of the boundary of the remaining park is ______.
Parmindar walks around a square park once and covers 800 m. What will be the area of this park?
The perimeter of a square garden is 48 m. A small flower bed covers 18 sq m area inside this garden. What is the area of the garden that is not covered by the flower bed? What fractional part of the garden is covered by flower bed? Find the ratio of the area covered by the flower bed and the remaining area.
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, if (ii) is divided into squares of unit length, then its area is 13 unit squares.
 |
| (ii) |
In the following figure, perimeter of (ii) is 18 units.
|
| (ii) |
Two figures can have the same area but different perimeters.
