Question

area and perimeter of cube and cuboid​

Answer 1

Step-by-step explanation:

The perimeter of cube is the sum of all the edges the cube has. If the cube has each side as 10 cm, then the perimeter = 10*12 = 120 cm as there are 12 edges each of 10 cm. Its volume = 10^3 = 1000 cc.

Suppose there is a cuboid of sides 8 cm, 10 cm, and 12 cm. There will be 4 edges of 8 cm, 4 edges of 10 cm and 4 edges of 12 cm. So the perimeter of the cuboid = 4*8 + 4*10 + 4*12 = 32 +40 + 48 = 120 cm. Its volume = 8*10*12 = 960 cc.

A cuboid which length,breadth and height are equal to each other, is called cube.

Perimeter of cuboid = 4(l+b+h)

Perimeter of cube = 12 a, where a is edge of cube.

Area of cube 6a^2

area of cuboid 2( lb + hb + lh )

Answer 2

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$\bf\Huge\red{\mid{\overline{\underline{ ANSWER }}}\mid }$

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$\Large\fbox{\color{purple}{QUESTION}}$

SURFACE AREA VOLUME FORMULAS

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$\Large\fbox{\color{purple}{ SOLUTION }}$

$\Large\mathcal\blue{CUBOID}$

$\implies \: lsa = 2(l + b)h \\ \\ \: \implies \: tsa = 2(lb + bl + hl) \\ \\ \implies \: volume \: = l \times b \times h$

$\Large\mathcal\orange{CUBE}$

$\implies \: lsa = {4a}^{2} \\ \\ \implies \: tsa = {6a}^{2} \\ \\ \implies \: volume = {a}^{3}$

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