Interior Triangle Angle Theorem

Find the measure of x in degrees using the Exterior Angle Theorem.

• 40

• 54

• 60

• 42

Name the sides from SMALLEST to LARGEST

• RS, ST, TR

• ST, RT, RS

• RT, ST, RS

• RT, RS, ST

Find the measure of each angle indicated.

Encuentra la medida del ángulo indicado.

• 139°

• 66°

• 138°

• 116°

Find the measure of the missing angle.

Calcula la medida del ángulo faltante.

• 90^o

• 10⁰

• 130^o

• 50^o

If two of the angles of a triangle are 30 and 70 degrees, the third angle measures...

Si dos de los ángulos de un triángulo son 30 y 70 grados, el tercer ángulo mide ...

• 80

• 100

• 60

• 90

Find the measure of the indicated angle. 

• 95

• 85

• 35

• 45

Find the missing angle.

• 100

• 200

• 300

• 70

Which of the following triangles will the triangle sum theorem work for?

• Right

• Acute

• Scalene

• Any

Which two angles are the remote interior angles to Angle W?

• Angle X and Angle Y

• Angle X and Angle Z

• Angle Y and Angle Z

• Angle Z and Angle W

What is the measure of x?

• 101°

• 111°

• 121°

• 131°