Question

Fill in the blanks
1. The area of a square is 49 sq m then its perimeter is
2. Length and breadth of a rectangle are x and y. then its perimeter is
3.If the sides of a square are halved then its area

4. Perimeter of an equilateral triangle of side is
5.The sides of a rectangle are in the ratio of 3: 2. If its perimeter is 40 cm then its length​

Answer 1

Answer:

1 ans 4 x side

4 x 7m

28m

2 ans.. the perimeter of the rectangle is 2x +2y

5 ans. let the required no. be y

3x + 2x = 40 cm

5x = 40 cm

x = 40 / 5

x = 8

hence,

3x = 3 x 8

= 24 cm

2x = 2 x 8

= 16 cm

Answer 2

Answer:

1) 28 m

2) 2 ( x + y)

3) if sides reduced by half area reduces by (1/4) th

4) perimeter of equilateral triangle of side "s" is 3s

5) length is 12 cm