Question

perimeter of rectangle length
60m 20​

Answer 1

Answer:

10 m

Step-by-step explanation:

we know

P=2 (l+b)

replace with given values

60=2 (20+b)

FIND b

60/2=30=20+b

30-20=10=b

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Answer 2

Answer:

10 m

35cm and 525 sq cm

18m and 756 sq m

140cm and 30 cm

Step-by-step explanation:

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