Geometry Vocabulary

Front

In a geometric proof, reasons are on the _____ side.

Back

Right

Front

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

Back

Midpoint = ((x1 + x2)/2, (y1 + y2)/2)

Front

This is what kind of angle? (Image of an obtuse angle)

Back

Obtuse

Front

∠1 and ∠3 can best be described as what?

Back

Vertical angles

Front

Identify the quadrant where the point (-2, 6) is located.

Back

II

Front

What is the definition of complementary angles?

Back

Two angles that add up to 90 degrees.

Front

What is the definition of supplementary angles?

Back

Two angles that add up to 180 degrees.

Front

What is the definition of vertical angles?

Back

Angles opposite each other when two lines cross; they are equal.

Front

What is the definition of adjacent angles?

Back

Two angles that share a common side and vertex.

Front

What is the formula for the area of a triangle?

Back

Area = 1/2 * base * height