This math topic focuses on calculating the perimeter of various shapes, specifically triangles, using visual aids provided in picture format. Problems involve determining the perimeter of objects like yards, parks, and the borders of paintings, encouraging the application of perimeter concepts in practical scenarios. Each problem presents multiple-choice answers, allowing learners to select the correct perimeter measurement from given options. This set of exercises helps solidify the foundational concept of perimeter within a real-world context.
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How long is the border around the outside of this painting?