Converse of the Pythagorean Theorem
 This triangle is an acute triangle.This triangle is a right triangle.This triangle is an obtuse triangle.131419 Given a triangle with the sides 11, 60, 61 is it anacute triangle, a right triangle, or an obtusetriangle?AcuteRightObtuse This triangle is a right triangle.This triangle is an obtuse triangle.This triangle is an acute triangle.353751 Given a triangle with the sides 18, 80, 82 is it anacute triangle, a right triangle, or an obtusetriangle?AcuteObtuseRight This triangle is an acute triangle.This triangle is a right triangle.This triangle is an obtuse triangle.1.522.5 Given a triangle with the sides 30, 40, 50 is it anacute triangle, a right triangle, or an obtusetriangle?AcuteRightObtuse Given a triangle with the sides 5, 12, 13 is it anacute triangle, a right triangle, or an obtusetriangle?RightAcuteObtuse This triangle is an obtuse triangle.This triangle is an acute triangle.This triangle is a right triangle.81012 This triangle is an obtuse triangle.This triangle is a right triangle.This triangle is an acute triangle.171926 Given a triangle with the sides 28, 45, 51 is it anacute triangle, a right triangle, or an obtusetriangle?RightObtuseAcute What are the possible lengths of a third side of a triangle if two of the sides are...5)  Not used1)  6 and 92)  5 and 103)  2 and 54)  3 and 129 < x < 15?3 < x < 7?5 < x < 15?3 < x < 15?3 < x < 10?
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