Question

the length and breadth of a rectangular field are 20 cm and 12 CM respectively . Find its area and hence convert its unit into SI system​

Answer 1

Area of rectangle

Area can be described as the space occupied by a flat shape. Area is measured in square units.

The basic formula for area of a rectangle is equal to the product of length and breadth. i.e.

$\implies \boxed{Area_{(rectangle)} = l \times b}$

Where, l denotes length of rectangle and b denotes breadth of rectangle.

Length and breadth are given in the question, that is,

• length, l = 20cm
• breadth, b = 12cm

And we have to find the area of rectangle.

By using the formula and substituting the known values, we get:

$\implies Area_{(rectangle)} = 20 \times 12 \\ \\ \implies \boxed{Area_{(rectangle)} = 240}$

Now, let's convert the unit into SI unit. We know that, cm² is CGS unit so we need to convert it into m².

We know that, to convert cm into m we have to divide the value by 100.

$\implies \dfrac{240}{100} = \boxed{\bf{2.4 \: m^2}}$

Hence, the area of rectangle is 2.4 m².

Answer 2

Answer:

Question :-

• The length and breadth of a rectangular field are 20 cm and 12 CM respectively .
• Find its area and hence convert its unit into SI system.

Given :-

• The length and breadth of a rectangular field are 20 cm and 12 CM respectively .

Find Out :-

• Find its area and hence convert its unit into SI system.

Solution :-

As we know that :

$\red{ \boxed{\sf{Area\: Of\: Rectangle =\: Length \times Breadth}}}$

☣ Area Of Rectangle :

We have :

• Length = 20 cm
• Breadth = 12 cm

$\leadsto \sf Area\: Of\: Rectangle =\: 20\: cm \times 12\: cm$

$\leadsto \sf Area\: Of\: Rectangle =\: (20 \times 12)\: cm^2$

$\leadsto {\small{\bold{\purple{\underline{Area\: Of\: Rectangle =\: 240\: cm^2}}}}}$

☣ Convert into SI system :

• The S.I unit of rectangle is m².

So,

$\leadsto \sf Area\: Of\: Rectangle =\: \dfrac{240}{100}$

$\leadsto \sf Area\: Of\: Rectangle =\: \dfrac{24\cancel{0}}{10\cancel{0}}$

$\leadsto \sf Area\: Of\: Rectangle =\: \dfrac{24}{10}$

$\leadsto {\small{\bold{\green{\underline{Area\: Of\: Rectangle =\: 2.4\: m^2}}}}}$

Henceforth, the area of a rectangle in SI system is 2.4 m².

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$\qquad\qquad\underline{\textsf{\textbf{ \color{magenta}{Brainly\: Extra\: Shots :-} }}}$

Rectangle :

• A rectangle is a type of quadrilateral.
• A rectangle is characterized by length (L) and width (W).
• Its opposite sides are equal and parallel, in rectangle.

Formula Regarding Rectangle :

✯ Perimeter = 2(Length + Breadth)

✯ Area Of Rectangle = Length × Breadth