Mathematics
27.08.2021 19:23
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LENGHT OF THE RECTANGLE IS 7 LESS THAN THE TWICE OF THE BREADTH THEN FIND ITS DIMENSIONS

LENGHT OF THE RECTANGLE IS 7 LESS THAN THE TWICE OF THE BREADTH THEN FIND ITS DIMENSIONS IF THE PERIMETER IS 40 CM
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stroziercameron
stroziercameron
4,9(89 marks)

Step-by-step explanation:

Length of rectangle = 7 less than the twice the breadthPerimeter = 40 cm

Let us say the breadth as b and length as l.

β†’ Length = 7 less than the twice the breadth

β†’ l = 2b - 7 ...(1)

Now, according to the question,

β†’ Perimeter of rectangle = 2(l + b)

β†’ 40 = 2(2b - 7 + b)

β†’ 40 = 2(3b - 7)

β†’ 40 = 6b - 14

β†’ 40 + 14 = 6b

β†’ 54 = 6b

β†’ 54 Γ· 6 = b

β†’ 9 m = Breadth

Now, finding length.

β†’ l = 2b - 7

β†’ l = 2(9) - 7 m

β†’ l = 18 - 7 m

β†’ Length = 11 m

Jonny13Diaz
Jonny13Diaz
4,7(1 marks)

1/3

Step-by-step explanation:

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