Respuesta :

A= 1/2 • 20 • 28 = 280 cm2
A= 1/2 • 40 • 14 = 280 cm2
A= 1/2 • 56 • 10 = 280 cm2

Extra note: any side of a triangle can be a base. Once you choose a base, there will be only one corresponding height.


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