Question

The length of a rectangular field is 82m.If its perimeter is 248m,What is its breadth?​

Answer 1

Answer:

perimeter of rectangle = 2(length + breath)

                             248     = 2(82 + b)

                             124 = 82 + b

                              42 m= b

Step-by-step explanation:

Answer 2

Given :-

Length = 82m

Perimeter = 248m

To find :-

Breadth

Solution :-

$\boxed{ \sf perimeter = 2(l + b)}$

$\longrightarrow \bf 2(82 + b) = 248$

$\longrightarrow \bf 164 + 2b = 248$

$\longrightarrow \bf 2b =84$

$\longrightarrow \bf b = \cancel{ \dfrac{84}{2} }$

$\longrightarrow \bf \blue{ b = 42m}$

Therefore :-

Breadth of the rectangular field = 42m

Verification :-

Perimeter = 2( l + b)

248 = 2(82 + 42)

248 = 2(124)

248 = 248

LHS = RHS

Hence, Verified.