Question

work out the area of the rectangle with base b=26mm and peroimiter p=72mm

Answer 1

Given that : Perimeter if rectangle = 72mm

and breadth = 26 mm

As we know that :

Perimeter of rectangle = 2(l+b)

According to the question :

2(l+b) = 72

=> 2(l+26) = 72

=> l+26 = 36

=> l = 10 mm

Now, Area of rectangle = l×b

=> Area of rectangle = 10×26 = 260 mm²

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Answer 2

$\huge{\sf{Answer:}}$

Given:

Base of the rectangle = Breadth = 26mm

Perimeter of the Rectangle =72mm

$\large{\sf{\orange{Formula}}}$

$\implies$ Area = L x B

$\implies$ Perimeter = 2(L+B)

Solution:

Perimeter=2(L+26)

$\implies$72=2L + 52

$\implies$ 2L = 20

$\implies$$\large{\boxed{ L = 10}}$

Now,

Area of Rectangle

Length x Breadth = 10 x 26

$\implies$ $\large{\boxed{\boxed{260mm^2}}}$