This math topic focuses on the geometry of isosceles triangles, specifically how to determine unknown side lengths when one side length is given. The problems belong to a broader unit dealing with both isosceles and equilateral triangles. Students are presented with images of triangles and are expected to apply geometric principles to find the length of specified sides, with multiple choice answers provided for each question. This set of problems is designed to enhance understanding of triangle properties and computation skills in a focused area of geometry.
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What do we know about side 'R'?