Sample Problems For Triangle Angles 2

Complexity=5, Mode=numSupp

1.   x =

2.   x =

Complexity=8, Mode=varSupp

1.   x =

2.   x =

Complexity=10, Mode=distAng

1.   x =

2.   x =

Complexity=20

1.   x =

2.   x =

Answers

Complexity=5, Mode=numSupp

#	Problem	Correct Answer	Your Answer
1		x =
Solution The two angles form a line so they are supplementary angles. The sum of supplementary angles is 180 degrees. 42 + x = 180 x = 180 - 42 x = 138

#	Problem	Correct Answer	Your Answer
2		x =
Solution The two angles form a line so they are supplementary angles. The sum of supplementary angles is 180 degrees. 45 + x = 180 x = 180 - 45 x = 135

Complexity=8, Mode=varSupp

#	Problem	Correct Answer	Your Answer
1		x =
Solution The two angles form a line so they are supplementary angles. The sum of supplementary angles is 180 degrees. 2x + 4x = 180 6x = 180 6x ÷ 6 = 180 ÷ 6 x = 30

#	Problem	Correct Answer	Your Answer
2		x =
Solution The two angles form a line so they are supplementary angles. The sum of supplementary angles is 180 degrees. x + 8x = 180 9x = 180 9x ÷ 9 = 180 ÷ 9 x = 20

Complexity=10, Mode=distAng

#	Problem	Correct Answer	Your Answer
1		x =
Solution The angle marked as 72 degrees forms a line with the angle next to it. They are supplementary angles. Let y be this supplementary angle. 72 + y = 180 y = 180 - 72 = 108 The angles of a triangle add up to 180 degrees.. x + 108 + 61 = 180 x + 169 = 180 x = 11

#	Problem	Correct Answer	Your Answer
2		x =
Solution The angle marked as 71 degrees forms a line with the angle next to it. They are supplementary angles. Let y be this supplementary angle. 71 + y = 180 y = 180 - 71 = 109 The angles of a triangle add up to 180 degrees.. x + 109 + 57 = 180 x + 166 = 180 x = 14

Complexity=20

#	Problem	Correct Answer	Your Answer
1		x =
Solution The two angles form a line so they are supplementary angles. The sum of supplementary angles is 180 degrees. 88 + x = 180 x = 180 - 88 x = 92

#	Problem	Correct Answer	Your Answer
2		x =
Solution The angle marked as 34 degrees forms a line with the angle next to it. They are supplementary angles. Let y be this supplementary angle. 34 + y = 180 y = 180 - 34 = 146 The angles of a triangle add up to 180 degrees.. x + 146 + 16 = 180 x + 162 = 180 x = 18