Question

Find the surface area.
9 in
7 in
16 in

Answer 1

❀ Step-by-step explanation -:

In this question we are provided with the length breadth and height and we are asked to find the surface area of the figure.

`\small\bf{ Length = 16 \: inches } \\ \small\bf{Breadth = 7 \: inches} \\ \small\bf{Height = \: 9 \: inches}`

We know,

`\pink\star \: \large\boxed{ \pink{ \rm{ Surface \: area = 2(lb + bh + hl)}}}`

Substituting the values we get

Surface area = 2(16 × 7 + 7 × 9 + 9 × 16)

= 2(112 + 63 + 144)

= 2(319)

= 638

Surface area = 638 inches².

Answer 2

Hey !

Question :

Find the surface area of cuboid .

Given :

• Length of Cuboid = 16 inches

• Breadth of Cuboid = 7 inches

• Height of Cuboid = 9 inches

To Find :

• We have to find the surface area of given cuboid .

Concept :

The concept of this question belongs to surface areas of different three dimensional shapes . Whether they are cuboid , cube , cylinder , cone and many more .

Formula Used :

`\boxed{\sf{ \pink{Surface \: Area \: of \: cuboid=} \pink{2(lw + wh + hl)}}}`

Where ,

• l = length height of cuboid

• w = width height of cuboid

• h = height of cuboid

So Starting Our Solution :

Substituting value in formula ,

`\longmapsto \: 2 ((16 * 7) + (7 * 9) + 9 * 16)`

Now ,

`\longmapsto \: 2(112 + 63 + 144)`

Adding the values which are inside bracket ,

`\longmapsto \: 2(319)`

Now multiplying 319 by 2 ,

`\longmapsto \: \bold{ 638 \: inches {}^(2) }`

Therefore ,

`\boxed{ \sf \pink{Surface \: area \: of cuboid = 638 \: in {}^(2) }}`

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