Angle Relationships in Triangles

Which type of triangle is pictured?

• Equilateral Triangle

• Right Isosceles Triangle

• Obtuse Scalene Triangle

• Obtuse Equilateral Triangle

Find the measure of the missing angle.

• 90^o

• 10⁰

• 130^o

• 50^o

An angle whose measure is exactly 90 degrees.

• acute

• vertical

• right

• straight

Solve for x.

• 16

• 11

• 50

• 6

Which of the following equations must be true based on the figure?

• 60+58+x=180

• 60+y=x

• 60+58=x

• 58+y=x

Quinn made a statement about the triangle shown. Determine whether his statement is true or false.

• True

• False

Quinn made a statement about the triangle shown. Determine whether his statement is true or false.

​ (a)  

• True

• False

In the triangles shown, angle E ​ (a)   angleB​

• >

• =

• <

If the vertex is 80, what is the left base angle measurement?