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15-10-2020
Mathematics

contestada

the dimensions of a rectangle if its perimeter is 100 cm and it length is 20cmmore than it breadth.

Respuesta :

Comfortably15 Comfortably15

15-10-2020

Answer:

length= 35cm
breadth =15cm

Step-by-step explanation:

where l= length

and b= breadth

Perimeter of a rectangle = 2l +2b

100 = 2(20+b) + 2b

100 = 40 +2b +2b

100 = 40 + 4b

100-40 = 4b

60 = 4b

breadth= 15cm

length= 20+15

= 35 cm

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