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The document provides the correct classifications for problems numbered 1 through 20, supporting quick checking of student responses and reinforcement of angle properties by 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do you decide whether an angle is acute, obtuse, right, or straight?","Question",{"text":62,"@type":63},"Use the degree measure: right angles are 90°, straight angles are 180°, acute angles are less than 90°, and obtuse angles are greater than 90° but less than 180°.","Answer",{"name":65,"@type":60,"acceptedAnswer":66},"What is the answer for the angle 90°?",{"text":67,"@type":63},"90° is classified as a right angle.",{"name":69,"@type":60,"acceptedAnswer":70},"Which category matches 180° in this worksheet?",{"text":71,"@type":63},"180° is classified as a straight angle.","https://schema.org",{"og:url":32,"og:type":74,"og:title":10,"og:site_name":45,"og:description":12},"article",{"robots":76,"canonical":32},"index,follow",{"doc_id":78,"site_id":7},466247,1792920222,{"code":4,"msg":81,"data":82},"success",{"doc_id":78,"user_id":83,"nickname":42,"user_avatar":84,"doc_module":4,"category_id":33,"category_name":29,"doc_title":10,"doc_description":12,"doc_content":85,"file_id":86,"file_url":87,"file_type":88,"file_size":89,"view_count":26,"is_deleted":4,"is_public":22,"is_downloadable":22,"audit_status":22,"page_count":30,"language":90,"language_code":8,"site_id":7,"html_lang":8,"table_of_contents":91,"faqs":92,"seo_title":93,"seo_description":12,"update_tm":94,"read_time":95},8796095462418,"https://ap-avatar.wpscdn.com/avatar/80000253c1241d02b47?x-image-process=image/resize,m_fixed,w_180,h_180&k=1778826106357471780","Finding Angles By Degrees  \nName:  \nDetermine if the angle described is 'acute', 'obtuse','right' or 'straight'.  \n1) 90°  \n2) 7°  \n3) 153°  \n4) 54°  \n5) 81°  \n6) 84°  \n7) 174°  \n8) 90°  \n9) 177°  \nAnswers  \n1.  \n2.  \n3.  \n4.  \n5.  \n6.  \n7.  \n8.  \n10) 170°  \n11) 180°  \n12) 151°  \n13) 95°  \n14) 122°  \n15) 43°  \n16) 180°  \n17) 57°  \n18) 121°  \n19) 138°  \n20) 36°  \n9.  \n10.  \n11.  \n12.  \n13.  \n14.  \n15.  \n16.  \n17.  \n18.  \n19.  \n20.  \nMath  \n[www.CommonCoreSheets.com](www.CommonCoreSheets.com)  \n6  \n1-10 11-20  \n95  \n45  \n90  \n40  \n85  \n35  \n80  \n30  \n75  \n25  \n70  \n20  \n65  \n15  \n60  \n10  \n55  \n5  \n50  \n0  \nFinding Angles By Degrees  \nName: Answer Key  \n\n| Determine if the angle described is 'acute', 'obtuse','right' or 'straight'.\u003Cbr>1) 90° |  | Answers\u003Cbr>1.  right  |  |\n| --- | --- | --- | --- |\n| 2) | 7° | 2. | acute |\n| 3) | 153° | 3. | obtuse |\n| 4) | 54° | 4. | acute |\n| 5) | 81° | 5. | acute |\n| 6) | 84° | 6. | acute |\n| 7) | 174° | 7. | obtuse |\n| 8) | 90° | 8. | right |\n| 9) | 177° | 9. | obtuse |\n| 10) | 170° | 10. | obtuse |\n| 11) | 180° | 11. | straight |\n| 12) | 151° | 12. | obtuse |\n| 13) | 95° |  |  |\n|  |  |  |  |\n| 14) | 122° | 13. | obtuse |\n|  |  |  |  |\n| 15) | 43° | 14. | obtuse |\n|  |  |  |  |\n| 16) | 180° | 15. | acute |\n|  |  |  |  |\n| 17) | 57° | 16. | straight |\n|  |  |  |  |\n| 18) | 121° | 17. | acute |\n|  |  |  |  |\n| 19) | 138° | 18. | obtuse |\n|  |  |  |  |\n| 20) | 36° | 19.\u003Cbr>20. | obtuse |\n|  |  |  | acute |\n\nMath  \n[www.CommonCoreSheets.com](www.CommonCoreSheets.com)  \n6  \n1-10 11-20  \n95  \n45  \n90  \n40  \n85  \n35  \n80  \n30  \n75  \n25  \n70  \n20  \n65  \n15  \n60  \n10  \n55  \n5  \n50  \n0  \nFinding Angles By Degrees  \nName:  \n\n| Determine if the angle described is 'acute', 'obtuse','right' or 'straight'.\u003Cbr>1) 90°\u003Cbr>2) 7°\u003Cbr>3) 153°\u003Cbr>4) 54°\u003Cbr>5) 81°\u003Cbr>6) 84°\u003Cbr>7) 174°\u003Cbr>8) 90°\u003Cbr>9) 177°\u003Cbr>10) 170°\u003Cbr>11) 180°\u003Cbr>12) 151° |  |  |  |  |  |  |  | Answers\u003Cbr>1.  \u003Cbr>2.  \u003Cbr>3.  \u003Cbr>4.  \u003Cbr>5.  \u003Cbr>6.  \u003Cbr>7.  \u003Cbr>8.  \u003Cbr>9.  \u003Cbr>10.  \u003Cbr>11.  \u003Cbr>12.   |  |  |  |  |  |  |\n| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |\n| \u003Cbr>Math | Modified\u003Cbr>[www.CommonCoreSheets.com](www.CommonCoreSheets.com) | 6 | 1-10\u003Cbr>11-12 | 92 | 83 | 75 | 67 |  | 58 | 50 | 42 | 33 | 25 | 17 |\n|  |  |  |  | 8 | 0 |  |  |  |  |  |  |  |  |  |","cbCait8Yu0vqXqXB","https://ap.wps.com/l/cbCait8Yu0vqXqXB","pdf",42235,"English","# Determine Angle Types\n## Acute, Obtuse, Right, Straight","[{\"question\":\"How do you decide whether an angle is acute, obtuse, right, or straight?\",\"answer\":\"Use the degree measure: right angles are 90°, straight angles are 180°, acute angles are less than 90°, and obtuse angles are greater than 90° but less than 180°.\"},{\"question\":\"What is the answer for the angle 90°?\",\"answer\":\"90° is classified as a right angle.\"},{\"question\":\"Which category matches 180° in this worksheet?\",\"answer\":\"180° is classified as a straight angle.\"}]","Finding Angles By Degrees - Angle Types Practice - Answer Key | PDF",1790770864,8,{"code":4,"msg":81,"data":97},[98,102,106,109,114,119,124,128,133,136,140],{"id":22,"doc_module":4,"doc_module_name":25,"category_name":99,"show_sort_weight":100,"slug":101},"Story & 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