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• 16:55, 6 November 2025 Shadowleafy talk contribs created page 2025 AMC 12A Problems/Problem 20 (Created page with "== Problem == The base of the pentahedron shown below is a <imath>13 \times 8</imath> rectangle, and its lateral faces are two isosceles triangles with base of length <imath>8</imath> and congruent sides of length <imath>13</imath>, and two isosceles trapezoids with bases of length <imath>7</imath> and <imath>13</imath> and nonparallel sides of length <imath>13</imath>. [Diagram] What is the volume of the pentahedron? == Solution 1 (Split Into Three Parts) == Notice t...")
• 16:09, 22 September 2022 User account Shadowleafy talk contribs was created automatically