{"status": "success", "data": {"description_md": "The point $O$ is the center of the circle circumscribed about $\\triangle ABC,$ with $\\angle BOC=120^\\circ$ and $\\angle AOB=140^\\circ$. What is the degree measure of $\\angle ABC?$\n\n$\\textbf{(A) } 35 \\qquad\\textbf{(B) } 40 \\qquad\\textbf{(C) } 45 \\qquad\\textbf{(D) } 50 \\qquad\\textbf{(E) } 60$", "description_html": "<p>The point  <span class=\"katex--inline\">O</span>  is the center of the circle circumscribed about  <span class=\"katex--inline\">\\triangle ABC,</span>  with  <span class=\"katex--inline\">\\angle BOC=120^\\circ</span>  and  <span class=\"katex--inline\">\\angle AOB=140^\\circ</span> . What is the degree measure of  <span class=\"katex--inline\">\\angle ABC?</span> </p>\n<p> <span class=\"katex--inline\">\\textbf{(A) } 35 \\qquad\\textbf{(B) } 40 \\qquad\\textbf{(C) } 45 \\qquad\\textbf{(D) } 50 \\qquad\\textbf{(E) } 60</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": 1, "problem_name": "2007 AMC 10B Problem 4", "can_next": true, "can_prev": true, "nxt": "/problem/07_amc10B_p05", "prev": "/problem/07_amc10B_p03"}}