The figure below shows a brick in the shape of a rectangular prism. 6 cm 8 cm 14 cm (a) Use the calculator to find the surface a
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We will have to use the formula for the area of a trapezoid on this problem, which is ( and
are the bases of the trapezoid and
is the height):
All we need to do is substitute the information we are given into our formula:
Now, let's just simplify the equation:
The missing base has a length of 13 units.