Triangle Coordinate Geometry Proofs (Section 4-8)

Front

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

Back

Front

What is the slope of a line given two points (x1, y1) and (x2, y2)?

Back

Front

How do you determine if two lines are parallel using their slopes?

Back

Front

How do you determine if two lines are perpendicular using their slopes?

Back

Front

What is the midpoint formula for a line segment between points (x1, y1) and (x2, y2)?

Back

Front

What are the characteristics of a scalene triangle?

Back

A scalene triangle has all sides of different lengths.

Front

What are the characteristics of an isosceles triangle?

Back

An isosceles triangle has at least two sides of equal length.

Front

What are the characteristics of an equilateral triangle?

Back

An equilateral triangle has all three sides of equal length.

Front

How many distances must be calculated to classify a triangle as scalene, isosceles, or equilateral?

Back

You must calculate the distances of all three sides (3 distances).

Front

What is the formula for the area of a triangle given its base (b) and height (h)?

Back