sam2020chocolate
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1. Find the volume of a cube with a side of 9 cm.
2. Find the perimeter of a rectangle whose length is 4
cm and breadth is 3 cm.
3. Find the area of a square of side 11 m.
4. Find the area of a rectangle that is 14 m long and 5
m wide.
5. Find the perimeter of an equilateral triangle with
side 15 cm.
I'm in tension right now I am studying for exams and I'm tired it would be nice if you help me out!

Respuesta :

Step-by-step explanation:

1. Given,

Side of the cube = 9 cm

Therefore, volume of the cube = side Γ— side Γ— side

= 9cm Γ— 9cm Γ— 9cm

[tex] = 729 {cm}^{3} (ans)[/tex]

2. Given,

Length of the rectangle = 4cm

Breadth of the rectangle = 3cm

Therefore, perimeter of the rectangle = 2(l+b)

= 2(4cm + 3cm) = 2 Γ— 7cm = 14 cm (Ans)

3. Given,

Side of a square = 11 m

Therefore, area of the square = side Γ— side

= 11 m Γ— 11 m

[tex] \: = {121cm}^{2} (ans)[/tex]

4. Given,

Length of the rectangle = 14 m

Width of the rectangle = 5 m

Therefore, area of the rectangle = l Γ— b

= 14 m Γ— 5 m

[tex] = 70 {m}^{2} (ans)[/tex]

5. Given,

Side of the equilateral triangle = 15 cm

Therefore, perimeter of the triangle = 3 Γ— side

= 3 Γ— 15 cm = 45 cm (Ans)