Unit 4- Properties of Triangles

Front

What do the angles in an equilateral triangle measure?

Back

60°, 60°, 60°

Front

If an isosceles triangle has a base angle measuring 40°, what is the measure of the vertex angle?

Back

100°

Front

Solve for x in the triangle where the angles are 90°, 45°, and x.

Back

x = 45°

Front

Identify the type of triangle with angles measuring 90°, 45°, and 45°.

Back

Right Isosceles Triangle

Front

Can the sides of a triangle have lengths 3, 8, and 9?

Back

Yes

Front

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

Back

180°

Front

What is the definition of an isosceles triangle?

Back

A triangle with at least two equal sides.

Front

What is the definition of a scalene triangle?

Back

A triangle with all sides of different lengths.

Front

What is the definition of an equilateral triangle?

Back

A triangle with all sides and angles equal.

Front

What is the Pythagorean theorem?

Back

In a right triangle, a² + b² = c², where c is the hypotenuse.