Question

Find the perimeter of the rectangle whose length is 6 cm and breadth is 4 cm. 2. if the length of a side of a square room is 12 m. what will be the perimeter of a room? 3. sanya took three rounds of a garden whose each side is 18 m. find the total distance covered by her. a boy goes 3 times around a rectangular park whose side are 25 m and 19 m. how much distance does the boy cover? 4. find the cost of fencing a rectangular park of length 175 m and breadth 125 m at the rate of rs. 12 per metre. 5. breadth of a lunch box is 15 cm and its length is twice its breadth. what will be the perimeter of the lunch box? 6. if the sides of a triangle are in the ratio 4:6:5 and its perimeter is 60 cm, find the measure of each side. 7. a piece of string is 96 cm long. what will be the length of each side, if the string is used to form


a.a square


b.a regular hexagon


c.an equilateral triangle 8. pinku runs around a square field of side 63 m and sahil runs around a r

Answer 1

Answer:

Step-by-step explanation:

1. Perimeter of a rectangle

=2×(l+b)

2×(6+4)

2×10

20m

So the perimeter is 20m

2.

Given in the question

Side of a square room

=12cm

We know,

Perimeter of a square

=4 × side

4 × 12

48m

So, perimeter of the square is 48m.

5.

Given in the question

Breadth of a lunch box= 15 cm

Length twice its breadth

So,

Length=15×2

30cm

Now perimeter,

Perimeter of a rectangle is

=2×(l+b)

=2×(30+15)

=2×45

=90cm

So perimeter of the lunch box is 90cm.

Answer 2

Answer:

2×(l+b)

2×(6+4)

2×10

=20