Question

A4 m long rectangular mat has an area of 12m.
(a) what is it's breadth
(b) what is it's perimeter

i will mark u as brain list pls answer its urgent....​

Answer 1

Explanation:

area of a rectangle = length × breadth

length = 4 m ( given )

4 m long represents length...

now,

breadth = 12/4

= 3

therefore, breadth = 3

and perimeter of rectangle = 2 × ( l + b )

= 2 × (4 + 3 )

= 2 × 7

= 14

therefore, perimeter of the rectangle = 14

hope this helps u..

Answer 2

Given:

• length of the rectangle is 4m
• area of the rectangle is 12M

To Find:

• it's breadth and it's perimeter

Solution:

$\sf \underline{★According \: to \: the \: question : }$

$\sf: \implies\blue{area} = l \times b \\ \\ \sf: \implies \blue{12m} = 4 \times b \\ \\ \sf: \implies \blue {\: b} = \cancel \frac{12}{4} \: \: \: \: \: \: \: \: \: \\ \\ \sf: \implies \blue{breath} = 3m$

$\blue{ \underline{ \boxed{ \pink{ \mathfrak{ \therefore \: breadth = 3m}}}}}$

$\sf: \implies \blue{perimeter} = 2(l + b) \\ \\ \sf: \implies \blue{perimeter} = 2(4 + 3) \\ \\ \sf: \implies \blue{perimeter} = 2 \times 7 \: \: \: \: \: \\ \\ \sf: \implies \blue{perimeter} = 14m \: \: \: \: \: \:$

$\blue{ \underline{ \boxed{ \pink{ \mathfrak{ \therefore \: perimeter \: of \: the \: figure = 14cm}}}}}$

hope this helps.!!