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(15)(1/4)(2/3)= 5/2= L
Si aplicamos Pitágoras para obtener la altura:
h= √3L/2
Para obtener el área:
A= bh
A= L(√3L/2) / 2
A= √3L^2 /4
A= √3(5/2)^2 /4
A= √3(25/4) /4
A= √3(25) /16 cm^2... R/.