{"status": "success", "data": {"description_md": "The keystone arch is an ancient architectural feature. It is composed of congruent isosceles trapezoids fitted together along the non-parallel sides, as shown. The bottom sides of the two end trapezoids are horizontal. In an arch made with $9$ trapezoids, let $x$ be the angle measure in degrees of the larger interior angle of the trapezoid. What is $x$? \n\n<center>\n<img class=\"problem-image\" height=\"115\" src=\"https://latex.artofproblemsolving.com/d/e/c/dec895c3ce8d2cb187b83306a03e47ef6abc8f75.png\" width=\"268\"/>\n</center>\n\n$\\text{(A) } 100\n\\qquad\n\\text{(B) } 102\n\\qquad\n\\text{(C) } 104\n\\qquad\n\\text{(D) } 106\n\\qquad\n\\text{(E) } 108$", "description_html": "<p>The keystone arch is an ancient architectural feature. It is composed of congruent isosceles trapezoids fitted together along the non-parallel sides, as shown. The bottom sides of the two end trapezoids are horizontal. In an arch made with  <span class=\"katex--inline\">9</span>  trapezoids, let  <span class=\"katex--inline\">x</span>  be the angle measure in degrees of the larger interior angle of the trapezoid. What is  <span class=\"katex--inline\">x</span> ?</p>\n<center>\n<img class=\"problem-image\" height=\"115\" src=\"https://latex.artofproblemsolving.com/d/e/c/dec895c3ce8d2cb187b83306a03e47ef6abc8f75.png\" width=\"268\"/>\n</center>\n<p> <span class=\"katex--inline\">\\text{(A) } 100\n\\qquad\n\\text{(B) } 102\n\\qquad\n\\text{(C) } 104\n\\qquad\n\\text{(D) } 106\n\\qquad\n\\text{(E) } 108</span> </p>\n<hr><p>Full credit goes to <a href=\"https://maa.org/\">MAA</a> for authoring these problems. These problems were taken on the <a href=\"https://artofproblemsolving.com/\">AOPS</a> website.</p>", "hints_md": "", "hints_html": "", "editorial_md": "", "editorial_html": "", "flag_hint": "", "point_value": 4, "problem_name": "2009 AMC 10B Problem 24", "can_next": true, "can_prev": true, "nxt": "/problem/09_amc10B_p25", "prev": "/problem/09_amc10B_p23"}}