3. Consider the shape shown to the right. (a) Calculate the area in \( \mathrm{cm}^{2} \). (b) Convert your answer to in \( { }^{2} \) (square inches).
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Looking at the shape, we can see that it consists of a rectangle and a triangle. (a) Let's start by calculating the area of the rectangle. The length of the rectangle is 8 cm and the width is 4 cm. The formula for the area of a rectangle is length times width, Show more…
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