Tag Archives: substitution

ACT Question of the Day Explained – February 7, 2014 – Math, Geometry, Area

Today’s ACT question is about the area of a trapezoid – they were nice enough to give us that formula right in the problem, so it’s a piece of cake!  Careful substitution cake with algebra frosting.

The formula they give us is:

a = (1/2)*h*(b1 + b2)       (h is the altitude, b1 and b2 are the parallel bases)

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