1.

Find the breadth of the rectangle whose perimeter is 146 cm and whose length is?40cm​

Answer»

Answer:LET the breadth be b.

length =40 cm

perimeter=146 cm

146=2 (40+b)

146=80+2b

146-80=2b

60=2b

2b=60

b=60/2

b=30 cm

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