Subjects geometry

Area Stepped Figure Dbf7Cf

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1. **State the problem:** Find the area of a polygon with right angles and given side lengths: bottom 13 in, two vertical sides 6 in each, two vertical segments 4 in each at the top, two indentations 2 in deep and 2 in wide, and a horizontal segment 5 in long across the indentations. 2. **Understand the shape:** The figure is a stepped rectangle with two rectangular indentations at the top. We can find the area by subtracting the areas of the indentations from the area of the large rectangle. 3. **Calculate the area of the large rectangle:** The large rectangle has width 13 in and height 6 in. $$\text{Area}_{\text{large}} = 13 \times 6 = 78$$ 4. **Calculate the area of each indentation:** Each indentation is a rectangle 2 in wide and 2 in deep. $$\text{Area}_{\text{indentation}} = 2 \times 2 = 4$$ 5. **Calculate total indentation area:** There are two indentations. $$\text{Area}_{\text{indentations total}} = 2 \times 4 = 8$$ 6. **Calculate the area of the figure:** Subtract the indentation areas from the large rectangle area. $$\text{Area}_{\text{figure}} = 78 - 8 = 70$$ 7. **Check the given answer:** The user states the answer is 58 in\textsuperscript{2}, so let's verify by breaking the figure into three rectangles: - Left rectangle: width 4 in, height 6 in, area = $4 \times 6 = 24$ - Middle rectangle (indentation area removed): width 5 in, height 2 in, area = $5 \times 2 = 10$ - Right rectangle: width 4 in, height 6 in, area = $4 \times 6 = 24$ Sum these areas: $$24 + 10 + 24 = 58$$ This matches the user's answer. **Final answer:** $$\boxed{58\text{ in}^2}$$