Circumference 21603

The circumference of the diamond is 29.6dm.
a - calculate the length of its side
b - calculate the area of the diamond if its height measures 5 dm

Correct answer:

a =  7.4 dm
S =  37 dm2

Step-by-step explanation:

o=29.6 dm  o = 4a  a=o/4=29.6/4=7.4 dm
v=5 dm  S=a v=7.4 5=37 dm2

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