SOLUTION: In triangle PQO if measure of angle P equals 21 degrees and measure of angle O equals 37 degrees, then Choices A) Triangle PQO is a scalene triangle B) Triangle PQO is an acu

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Question 38130: In triangle PQO if measure of angle P equals 21 degrees and measure of angle O equals 37 degrees, then
Choices
A) Triangle PQO is a scalene triangle
B) Triangle PQO is an acute triangle
C) Triangle PQO is a right triangle
D) Triangle PQO is an isoscleles triangle
Answer by ilana(305) (Show Source):
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The total of the angles must be 180 degrees, so andle Q must measure 180-(21+37)=122 degrees. If B were true, this would need to be less than 90, so that's false. If C were true, one would need to be 90 degrees, so this is false. If D were true, two angles would need to be equal, so this is false. So the answer must be A.