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contestada

if the breadth of rectangle in one third of its length and perimeter is 80 cm find length and breadth of rectangle​

Respuesta :

devishri1977

Answer:

length = 30 cm

Breadth = 10 cm

Step-by-step explanation:

Length = x cm

Breadth = (1/3)x

Perimeter = 80 cm

2(length + breadth) = 80

2* (x + (1/3)x) = 80

[tex]2*(\frac{3}{3}x+\frac{1}{3}x) = 80\\\\2*(\frac{4}{3}x) = 80\\\\\frac{8}{3}x = 80\\\\x = 80*\frac{3}{8}\\\\x = 10*3[/tex]

x = 30cm

length = 30 cm

breadth = [tex]\frac{1}{3}*30=10[/tex] cm

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