{"id":"act_practice_pdf:pt2:math:025","source_id":"act_practice_pdf","source_item_id":"pt2-math-025","external_id":null,"program":"ACT","section":"math","category_code":"PHM","category":"Preparing for Higher Math","subcategory_code":"G","subcategory":"Geometry","form_id":"act_practice_pdf:pt2","passage_id":null,"position":25,"scored":true,"layout_warning":null,"stem":"The vertex angle of an isosceles triangle is 40° . What is the measure of a base angle?","stimulus":"","stimulus_html":"<figure><img src=\"/api/assets/d5c58494b460eb992e9fab9a7bc59d6cf518337b6cce5c9a32958ab43fcb1d6a\" alt=\"Question 25 as printed in the ACT Practice Test 2 booklet\"><figcaption>As printed in the official booklet.</figcaption></figure>","stem_html":"<p>The vertex angle of an isosceles triangle is 40° . What is the measure of a base angle?</p>","rationale_html":null,"correct_answer":["B"],"equiv_key":"43f57dd1f3753313d8dad90d","has_media":true,"has_mathml":false,"has_table":false,"section_label":"Mathematics","options":[{"label":"A","content_html":"<p>40°</p>","ord":0},{"label":"B","content_html":"<p>70°</p>","ord":1},{"label":"C","content_html":"<p>100°</p>","ord":2},{"label":"D","content_html":"<p>140°</p>","ord":3}],"passage":null,"attribution":{"source_id":"act_practice_pdf","source_name":"Official ACT full-length practice tests (PDF)","rights_holder":"ACT Education Corp.","canonical_url":"https://www.act.org/content/act/en/products-and-services/the-act/test-preparation.html","retrieved_from":"https://www.act.org/content/act/en/products-and-services/the-act/test-preparation.html","attribution":"Full-length ACT practice tests © ACT Education Corp., published free at act.org. Questions are retired items from previous ACT administrations.","disclaimer":"Extracted from a print-layout PDF: equations, figures and charts do not survive as text. Use the original PDF for anything that renders poorly. ACT® is a registered trademark of ACT Education Corp., which is not affiliated with, does not sponsor, and does not endorse this project.","license":"ACT Education Corp. copyright. Published free for personal test preparation; not licensed for redistribution.","redistributable":false,"item_count":342},"equivalents":[]}