Geometry Semester 1 Review #2

Front

Classify the triangle based on its angles and sides.

Back

Acute scalene triangle: A triangle with all angles less than 90 degrees and all sides of different lengths.

Front

What are the three types of angles in geometry?

Back

Obtuse angle: Greater than 90 degrees but less than 180 degrees. Right angle: Exactly 90 degrees. Acute angle: Less than 90 degrees.

Front

How do you find the missing angle in a triangle?

Back

The sum of the angles in a triangle is always 180 degrees. Subtract the sum of the known angles from 180 to find the missing angle.

Front

What is a perpendicular bisector?

Back

A line that divides a segment into two equal parts at a 90-degree angle.

Front

What are the undefined terms in geometry?

Back

Points, lines, and planes are the foundational undefined terms in geometry.

Front

Define an acute triangle.

Back

A triangle where all three angles are less than 90 degrees.

Front

What is a right triangle?

Back

A triangle that has one angle measuring exactly 90 degrees.

Front

What is a scalene triangle?

Back

A triangle with all sides of different lengths and all angles of different measures.

Front

Explain the concept of an angle bisector.

Back

An angle bisector is a ray that divides an angle into two equal parts.

Front

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

Back

The sum of the interior angles of a triangle is always 180 degrees.