Question

Breath of a rectangle of its perimeter80cm and lenth4cm​

Answer 1

Step-by-step explanation:

2×(l+b)=80cm

2×(4+b)=80cm

4+b=80÷2

4+b=40

b=40-4

b=36

Answer 2

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Breath of a rectangle of its perimeter80cm and lenth4cm..

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$\large{\underline{\underline{\bold{\blue{\sf{Answer}}}}}}$

$Breadth=?$

$Length=4cm$

$Perimeter=80cm$

$\large{\underline{\underline{\bold{\blue{\sf{Breadth}}}}}}$⇒$\frac{Perimeter}{Length}$

$\large{\underline{\underline{\bold{\red{\sf{B}}}}}}$⇒$\frac{80}{4}$

$\large{\underline{\underline{\bold{\green{\sf{B}}}}}}$⇒$\cancel\frac{80}{4}⇒20cm.$

$\large{\underline{\underline{\bold{\orange{\sf{Answer=20cm}}}}}}$