Geometry Semester Review Dec 2024

Front

What is a ray in geometry?

Back

A ray is a part of a line that starts at a point and extends infinitely in one direction.

Front

What is the notation for a ray that starts at point A and passes through point B?

Back

The notation is ray AB.

Front

If m∠CEI = 34°, what does this represent in geometry?

Back

This represents the measure of angle CEI in degrees.

Front

What is the sum of the angles in a triangle?

Back

The sum of the angles in a triangle is always 180°.

Front

How do you find the value of x in an equation involving angles?

Back

You can use the properties of angles, such as the sum of angles in a triangle or linear pairs, to solve for x.

Front

What does a ratio of 3:1 indicate?

Back

A ratio of 3:1 indicates that for every 3 parts of one quantity, there is 1 part of another quantity.

Front

If m∠ECI = 73°, what can you infer about the other angles in the triangle?

Back

You can use the triangle sum theorem to find the measures of the other angles.

Front

What is the definition of complementary angles?

Back

Complementary angles are two angles whose measures add up to 90°.

Front

What is the definition of supplementary angles?

Back

Supplementary angles are two angles whose measures add up to 180°.

Front

How do you denote an angle in geometry?

Back

An angle is denoted by the symbol ∠ followed by the letters representing its vertex and points on each side.