Triangles and Trapezoids

Use the angles to classify the triangles

all angles less than 90° - acute triangle

1 angle is equal to 90° - right triangle

1 angle is greater than 90° - obtuse triangle

Use the angles to classify the triangles

all angles less than 90° - acute triangle

1 angle is equal to 90° - right triangle

1 angle is greater than 90° - obtuse triangle

Use the angles to classify the triangles

Find the measure of the missing angle in the triangle.

Find b.

Find the measure of the missing angle in the triangle.

Find the measure of the missing angle in the triangle.

Classify the triangle buy it's angle measures and it's side lengths.

• Right Isosceles triangle

• Acute Scalene triangle

• Obtuse scalene triangle

• Equilateral triangle

Find the measure of the indicated angle. 

• 95

• 85

• 35

• 45

Find the measure of the missing angle.

• 90^o

• 10⁰

• 130^o

• 50^o