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Answer:
B. a triangle with angles that measure 30°, 40°, and 110°
Explanation:
An obtuse-angled triangle is a triangle in which one of the interior angles measures more than 90° degrees. In an obtuse triangle, if one angle measures more than 90°, then the sum of the remaining two angles is less than 90°.
None is obtuse
An obtuse is something more than 180°and less than 360°
A.35°+65°+80°=180° Not obtuse
B.30°+40°+110°=180° Not obtuse
60°+60°+60°=180° Not obtuse
C.30°+60°+90°=180° Not obtuse
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