7th Math - Finding Unknown Angle Measures

Which set of three angles could represent the interior angles of a triangle?

26 degrees, 51 degrees, 103 degrees

In isosceles triangle GHK below, what is the value of m? Triangle G H K. Angle H is 126 degrees, and angles G and K are m.

27'

What is the measure of Angle D F E? Triangle D F E. The exterior angle to angle F is 28 degrees.

28'

What is the measure of Angle P Q R? Triangle P Q R. Angle R is 51 degrees. The lines of sides Q P and R P extend to form exterior angle at P of 74 degrees.

55'

Two angles in a triangle measure 28' and 93' . What is the measure of the third angle?

59'

What is the measure of Angle N M R? Triangle N M R. Lines N M and R M extend to form an exterior angle at angle M with a measure of 63 degrees.

63'

What is the measure of Angle R M N? Triangle R M N. Side N M extends to form exterior angle to M with angle 117 degrees.

63'

In isosceles triangle ABC below, what is the value of x? bac = 28'

76'

What is the measure of Angle J K L? Triangle J K L . The exterior angle to angle K has a measure of 83 degrees.

97'

The diagram below shows scalene triangle JKL. Which is true about the diagram? Select two options.

m<JKH + m<JKL=180 Measure of angle J K H + measure of angle J K L = 180 degrees m<JKL + m<JLK + m<KJL = 180 Measure of angle J K L + measure of angle J L K + measure of angle K J L = 180 degrees

What is the measure of <DEF? EDF = 28 EF = 135

107'

Two angles in a triangle measure 102' and 87' . What is the measure of the third angle?

11'

What is the value of y in the linear pair below? A straight line. A line comes out of the line to form angles 45 degrees and y.

135'

What is the measure of Angle M R N? Triangle M R N. Angle N is 98 degrees. Side N M extends to form exterior angle with a measure of 109 degrees.

16'