Question

1. Find the area of square whose slide is 4 cm.
2. Find the perimeter of square whose slide is 8 cm.
3. Find the area of rectangle whose length=4 cm. and
breadth = 5 cm.
4. Perimeter of a square is 128 cm. Find its area?
5. Find the perimeter of rectangle whose length=8 cm.
and breadth = 6 cm.
6. Find the area of square whose perimeter 170 cm
7. Find the volume of cuboid whose length, breadth
and height are 4 cm, 5 cm & 5 cm.
​

Answer 1

Step-by-step explanation:

here is ur all answers.

Answer 2

Answers:

Question 1:

Area of a square = a²

Side = 4 cm

So, area = 4²

= 4 x 4

= 16 cm²

Question 2:

Perimeter of a square = 4a

Side = 8 cm

So, perimeter = 4 x 8

= 32 cm

Question 3:

Area of a rectangle = lb

Length = 8 cm

Breadth = 6 cm

So, area = 8 x 6

= 48 cm²

Question 4:

Perimeter = 4a

Perimeter = 128 cm

So, 4a = 128 cm

∴ a = 128/4 = 32 cm

Area = a²

= 32 x 32

= 1024 cm²

Question 5:

Perimeter = 2 (l + b)

Length = 8 cm

Breadth = 6 cm

So, perimeter = 2 x (8 + 6)

= 2 x 14

= 28 cm

Question 6:

Perimeter = 4a

Perimeter = 170 cm

So, 4a = 170 cm

∴ a = 170/4 = 42.5 cm

Area = a²

= 42.5 x 42.5

= 1806.25 cm²

Question 7:

Length = 4 cm

Breadth = 5 cm

Height = 5 cm

Volume of a cuboid = lbh

= 4 x 5 x 5

= 100 cm³

Final answers:

1) 16 cm²

2) 32 cm

3) 48 cm²

4) 1024 cm²

5) 28 cm

6) 1806.25 cm²

7) 100 cm³

Formulae Used:

Perimeter of a square = 4a

Area of a square = a²

Perimeter of a rectangle = 2 (l + b)

Area of a rectangle = lb

Volume of a cuboid = lbh