Question

The breadth and perimeter of a rectangle are 8 cm and 64 cm. Find the length of the rectangle with formula.
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Answer 1

$\huge\fbox \purple{❥Aɳʂɰᶓɾ}$

$breadth \: of \: rectangle = 8cm \\ perimeter \: of \: rectangle = 64cm$

$\small\star\sf\purple{{perimeter\:of\:rec}}$=2(l+b)

$perimeter = 2(l + b) \\ 64cm = 2(l + 8cm) \\ 64cm = 2l + 16cm \\ 64cm - 16cm = 21cm \\ 48cm = 21$

$\small\fbox \purple{L=21cm.}$..