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Semmy [17]
4 years ago
8

Please explain how to do #5

Mathematics
1 answer:
Brrunno [24]4 years ago
7 0
The area of a square is Side x Side. Since its sides are equal you have:

S*S = 1.69
S^2 = 1.69 
S = √(1.69) 
S= 1.3 km

Hope this help :). 
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