Geometry Unit 4 Review -FHS

Front

Can the sides of a triangle have lengths 3, 4, and 9?

Back

No, the sum of the lengths of any two sides must be greater than the length of the third side.

Front

What is the sum of the angles in a triangle?

Back

180°.

Front

If one angle of a triangle is 50° and another is 90°, what is the measure of the third angle?

Back

40°.

Front

What is the Pythagorean theorem?

Back

Front

Find the measure of the missing angle if two angles are 50° and 80°.

Back

50°.

Front

What is the definition of a right triangle?

Back

A triangle that has one angle measuring 90°.

Front

What is the length of DC if AB = 4 and AC = 4?

Back

DC = 4.

Front

Back

52°.

Front

What is the formula for the area of a triangle?

Back

Front

What is the definition of congruent triangles?

Back

Triangles that are identical in shape and size.