Plane Geometry

Front

What is a plane in geometry?

Back

A flat, two-dimensional surface that extends infinitely in all directions.

Front

Define a line segment.

Back

A part of a line that is bounded by two distinct endpoints.

Front

What is a midsegment in a triangle?

Back

A segment that connects the midpoints of two sides of a triangle.

Front

How do you find the measure of an angle in a triangle?

Back

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

Front

What is the relationship between parallel lines and angles?

Back

When a transversal crosses parallel lines, it creates corresponding angles that are equal.

Front

Define complementary angles.

Back

Two angles whose measures add up to 90 degrees.

Front

Define supplementary angles.

Back

Two angles whose measures add up to 180 degrees.

Front

What is the formula for the area of a triangle?

Back

Area = 1/2 * base * height.

Front

What is a transversal line?

Back

A line that intersects two or more lines at different points.

Front

How many lines can pass through a single point?

Back

Infinitely many lines can pass through a single point.