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The perimeter of a rectangular
Sheet is 120 cm. If the length is 40 cm, find its breadth.
Also find its area.


Sagot :

Answer:

Breadth = 20 cm

Area = 800[tex]cm^{2}[/tex]

Step-by-step explanation:

Perimeter = 120 cm

length = 40 cm

Perimeter = 2 ( L + B )  

L - length     B - Breadth

120 = 2 ( 40 + B )

120 = 80 + 2B

2B = 120 - 80

2B = 40

B = [tex]\frac{40}{2}[/tex] = 20 cm

Breadth = 20 cm

Area of a reactangle = Length  × Breadth

= 40  × 20

= 800[tex]cm^{2}[/tex]