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Mathematics
Mathematics
Problem
The perimeter of a rectangular playground exceeds
100
m
100\,\text{m}
100
m
by
20
m
20\,\text{m}
20
m
. If its area is
900
m
2
900\,\text{m}^2
900
m
2
, what is the length of the playground? a)
60
m
60\,\text{m}
60
m
b)
15
m
15\,\text{m}
15
m
c)
30
m
30\,\text{m}
30
m
d)
51
m
51\,\text{m}
51
m
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