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8-71.

Calcula el área de cada uno de los siguientes trapecios.

  1. A trapezoid with horizontal parallel bases: bottom is 13 cm, and top is 4 cm. A dashed line, labeled 8 cm, perpendicular to both bases, connects the bases.

    Así es como comenzó Sheila a resolver el problema:

    Termina su trabajo.

  1. A trapezoid with horizontal parallel bases: bottom is 21 mm, and top is 16 mm. The right non parallel leg, which is perpendicular to both bases, is 11 mm.

    Mira el punto (a).