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Mathematics
Mathematics
Problem
The diagonal of a square tile measures
18
cm
18\,\text{cm}
18
cm
. Its exact area is a)
648
cm
2
648\,\text{cm}^2
648
cm
2
b)
162
cm
2
162\,\text{cm}^2
162
cm
2
c)
81
2
cm
2
81\sqrt{2}\,\text{cm}^2
81
2
cm
2
d)
324
cm
2
324\,\text{cm}^2
324
cm
2
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