Equilateral & Isosceles Triangles Period 5

Front

What do the angles in an equilateral triangle measure?

Back

60°, 60°, 60°

Front

What is the value of the missing angle in a triangle if two angles measure 65° and 65°?

Back

50°

Front

If triangle ABC is isosceles with AB = AC, and angle A = 60°, what are the measures of angles B and C?

Back

B = 60°, C = 60°

Front

What is the sum of the interior angles of any triangle?

Back

180°

Front

In an isosceles triangle, if the base angles are equal, what can you say about the sides opposite those angles?

Back

The sides opposite the equal angles are also equal.

Front

What type of triangle has all sides of equal length?

Back

Equilateral triangle.

Front

If one angle of a triangle measures 90°, what type of triangle is it?

Back

Right triangle.

Front

What is the classification of a triangle with angles measuring 30°, 60°, and 90°?

Back

Acute triangle.

Front

In triangle ABC, if angle A = 45° and angle B = 45°, what is angle C?

Back

Angle C = 90°.

Front

If the lengths of two sides of a triangle are 5 and 5, what type of triangle is it?

Back

Isosceles triangle.