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Daca 2/6 din lungimea unui dreptunghi este 180 m si 3/5 din latime este de 90 m ,afla perimetrul unui alt dreptunghi avand lungimea egala cu diferenta dintre laturile primului dreptunghi,iar latimea de trei ori mai mica decat aceasta diferenta.

1 Answer

5 votes
We look for the dimensions of the first rectangle:
For the length:
(2/6) L = 180
L = (6/2) * (180)
L = 540
For the width:
(3/5) W = 90
W = (5/3) * (90)
W = 150
We look for the dimensions of the new rectangle:
For the length:
L '= 540-150
L '= 390
For the width:
W '= (1/3) * (390)
W '= 130
Answer:
The dimensions of the new rectangle are:
L '= 390
W '= 130
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