{"kind":"task","effective_mode":"full","benchmark":{"kind":"benchmark","effective_mode":"full","slug":"math","formal_name":"MATH","introduction":"MATH organises 12,500 high-school competition problems into seven subjects and five difficulty levels, each with a full worked solution. It underlies much of the later mathematics evaluation work; this catalogue imports the full test split: 5,000 problems across all seven subjects.","introduction_ja":"","introduction_en":"","category":"Category not supplied","task_count":null,"acquisition_status":"Acquisition status not supplied","official_url":"https://github.com/hendrycks/math","indexing_mode":"index","profile":{"resources":[],"task_format":"","scoring":"","metric":"","size":"","answer_access":"","license":"","citation":"","maintainer":"","released":"","why_hard":"","related":[],"history":"","construction":"","limitations":"","saturation":"","scores":[]}},"task_id":"cccd3345-8035-51d7-8e7d-b91a2e6686e5","task_key":"geometry--test--cccd3345-8035-51d7-8e7d-b91a2e6686e5","task_revision_id":"1","upstream_id":"","short_description":"A semi-circle of radius 8 cm, rocks back and forth along a line. The distance…","config":"geometry","split":"test","body":"{\"level\":\"Level 5\",\"problem\":\"A semi-circle of radius 8 cm, rocks back and forth along a line.  The distance between the line on which the semi-circle sits and the line above is 12 cm.  As it rocks without slipping, the semi-circle touches the line above at two points.  (When the semi-circle hits the line above, it immediately rocks back in the other direction.)  What is the distance between these two points, in millimetres, rounded off to the nearest whole number? [asy]\\n\\ndraw((-15, -8)--(15, -8));draw((-15, 4)--(15, 4));draw((-8, 0)--(8, 0){down}..{up}(-8, 0));\\n\\n[/asy] (Note: After finding the exact value of the desired distance, you may find a calculator useful to round this value off to the nearest whole number.)\",\"type\":\"Geometry\"}","display_format":"math","language":"","answer_status":"published","assets":[],"source_url":"https://github.com/hendrycks/math","history":"initial import","indexing_mode":"index","subproblems":[],"grids":[]}