Respostas

2013-11-11T22:58:08-02:00
Teorema de pitagora:
d^2= 40^2+30^2
d^2=1600+900
d^2=2500
d= \sqrt{2500}
d= 50

Área:
A = D * d/ 2
A =50 * 40/2
A =1000 m²



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