12/8/23 Geometry Midterm Review

Front

What do we call a collection of points that extends indefinitely in two directions?

Back

A line

Front

Which sign means 'congruent'?

Back

\cong

Front

Are points D and E collinear or coplanar?

Back

Collinear

Front

Name the intersection of Plane ADE and Plane W.

Back

Line AD

Front

Find the midpoint of the segment with the endpoints: (4, 12) and (-6, 14).

Back

(-1, 13)

Front

What is the definition of a ray in geometry?

Back

A ray is a part of a line that has a fixed starting point and extends infinitely in one direction.

Front

What is the formula for finding the midpoint between two points (x1, y1) and (x2, y2)?

Back

Midpoint = (\frac{x1 + x2}{2}, \frac{y1 + y2}{2})

Front

What does it mean for two lines to be parallel?

Back

Two lines are parallel if they are in the same plane and do not intersect.

Front

What is the definition of a plane in geometry?

Back

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

Front

What is the difference between collinear and coplanar points?

Back

Collinear points lie on the same line, while coplanar points lie on the same plane.