Please answer the following question and give a full explanation.

1.	Please answer the following question and give a full explanation.
Answer» ANSWER: The perimeter of chocolate BAR is 90cm. $\rule{300}{2}$ EXPLANATION: Here in this question, concept of perimeter of rectangle is used. We have given that a chocolate bar is made up 6 small rectangle pieces and dimensions of each small rectagular piece is given as 8.2cm×6.8cm. To Find the perimeter of chocolate bar, first we have to OBTAIN all sides of chocolate bar. $\rule{300}{2}$ The length of chocolate bar is given as: => 3 × length of small rectagular piece. => 3 × 8.2cm => 24.6cm $\rule{300}{2}$ The breadth of chocolate bar is given as: => 3× breadth of small rectagular piece. => 3× 6.8cm => 20.4cm $\rule{300}{2}$ We have obtained the dimensions of the chocolate bar: Length→ 24.6cm Breadth→ 20.4cm $\rule{300}{2}$ Perimeter of rectangle is given by: → 2(Length+Breadth) → 2(24.6cm+20.4cm) → 2(45cm) → 90cm. So the required perimeter of chocolate bar is 90cm. $\rule{300}{2}$ ADDITIONAL INFORMATION: More important FORMULAE:- ★ AREA of rectangle=Length×breadth ★ Perimeter of square=4×Side ★ Area of square=Side² ★ Area of right angled triangle=½×Base×Height $\rule{300}{2}$

Answer»

ANSWER:

The perimeter of chocolate BAR is 90cm.

$\rule{300}{2}$

EXPLANATION:

Here in this question, concept of perimeter of rectangle is used. We have given that a chocolate bar is made up 6 small rectangle pieces and dimensions of each small rectagular piece is given as 8.2cm×6.8cm.

To Find the perimeter of chocolate bar, first we have to OBTAIN all sides of chocolate bar.

$\rule{300}{2}$

The length of chocolate bar is given as:

=> 3 × length of small rectagular piece.

=> 3 × 8.2cm

=> 24.6cm

$\rule{300}{2}$

The breadth of chocolate bar is given as:

=> 3× breadth of small rectagular piece.

=> 3× 6.8cm

=> 20.4cm

$\rule{300}{2}$

We have obtained the dimensions of the chocolate bar:

Length→ 24.6cm

Breadth→ 20.4cm

$\rule{300}{2}$

Perimeter of rectangle is given by:

→ 2(Length+Breadth)

→ 2(24.6cm+20.4cm)

→ 2(45cm)

→ 90cm.

So the required perimeter of chocolate bar is 90cm.

$\rule{300}{2}$

ADDITIONAL INFORMATION:

More important FORMULAE:-

★ AREA of rectangle=Length×breadth

★ Perimeter of square=4×Side

★ Area of square=Side²

★ Area of right angled triangle=½×Base×Height

$\rule{300}{2}$