Question

What is the perimeter of the following figure?

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Answer 1

${ \huge{ \bold{ \underline{ Answer}}}}$

➥Finding are of figure 1 :-

Given:

• Length = 6cm
• Breadth = 2cm

Solution:

➥ Here , it is a rectangle ..

${ \bold{{ \star{ \boxed{{Perimeter \: of \: a \: rectangle = 2( L + B ) }}}}}}$

$Perimeter = 2(6 + 2)$

$Perimeter = 2(8)$

${ \bold{Perimeter = 16cm}}$

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➨Similarly , area of figure 2 will be 16 cm because it is also a rectangle with same dimensions..

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➨Finding are of figure 3 :-

Given :

• Side = 3cm ( all the sides of a square are equal)

Solution :

➥ Here it is a square

${ \bold{{ \star{ \boxed{{Perimeter \: of \: a \: square = 4 \times side }}}}}}$

$Perimeter = 4 \times 3$

${ \bold{Perimeter = 12 \: cm}}$

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✪︎Total perimeter✪︎

$12 + 16 + 16$

$12 + 32$

$➠{ \huge{ \bold{44 \: cm}}}$

Answer 2

$\bf\blue{QuestioN:-}$

To find the perimeter of the figure given here.

$\bf\pink{AnsweR:-}$

Given :-

The dimensions  given are ,

Longer sides = 6 cm

2nd longer sides = 3 cm

Smaller sides = 2 cm

No. of sides = 8

No. of longer sides = 3

No. of 2nd longer sides = 2

No. of smaller sides = 3

To Find :-

The perimeter of the figure.

Solution :-

The perimeter of these sides = Sum total of the dimensions of all sides.

That is,

Sum of ( Longer side × 3) , ( 2nd longer side × 2 ) & ( smaller side × 3)

⇒ Longer sides are 6 cm.

⇒ There are three longer sides . So its sum = 3 × 6 = 18 cm.

⇒ The 2nd longer sides are of 3 cm, which are given on the top

   of the figure.

⇒ There two such sides. So it's total length = 2 × 3 = 6 cm.

⇒ Next in case of smaller sides.

⇒ We know it's length is 2 cm.

⇒ In two cases length is already given there.

In case of third one,

We know the length of the side at bottom is of 6 cm. At top of 4 cm's length had already marked. So the length of the side between that two 3 cm side would also be of 2 cm.

⇒ Now we got three sides of 2 cm.

⇒ So it's total is 3 × 2 = 6 cm.

[ Nb: The opposite sides are of equal measures, that'swhy we had

take the measures like this.]

Then the final step.

The perimeter of the given figure = Sum of all sides.

Or,

We will get the perimeter by adding that whole sum of equal sides.

ie,

$\longrightarrow$ Sum of longer sides + 2nd longer sides + smaller sides

$\longrightarrow\bf{(18+6+6)\:cm=30 \:cm}$

So the required answer is 30 cm.

Done !! ☺