Calculate 4215
Calculate the length of the side of the rectangle if you know its perimeter and the other side:
a) o = 100 m: b = 2.5 m
b) o = 80 cm: a = 20 mm
c) o = 38.6 dm: b = 45 cm
d) o = 88 mm: a = 2.5 cm
a) o = 100 m: b = 2.5 m
b) o = 80 cm: a = 20 mm
c) o = 38.6 dm: b = 45 cm
d) o = 88 mm: a = 2.5 cm
Correct answer:

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