GEOMETRY: Chapter 3 REVIEW

Front

What is the measure of a right angle?

Back

90 degrees.

Tags

CCSS.4.G.A.1

Front

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

Back

180 degrees.

Tags

CCSS.8.G.A.5

Front

What is the formula for the slope of a line?

Back

Slope (m) = (y2 - y1) / (x2 - x1).

Tags

CCSS.8.EE.B.5

Front

What does 'b' represent in the slope-intercept form of a line (y = mx + b)?

Back

The y-intercept of the line.

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

Front

How do you determine if two lines are parallel?

Back

Two lines are parallel if they have the same slope.

Tags

CCSS.4.G.A.1

CCSS.HSG.CO.A.1

Front

What is the equation of a line that is perpendicular to y = mx + b?

Back

The slope of the perpendicular line is the negative reciprocal of m.

Tags

CCSS.4.G.A.1

CCSS.HSG.CO.A.1

Front

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

Back

Distance = √((x2 - x1)² + (y2 - y1)²).

Tags

CCSS.HSG.GPE.B.7

Front

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

Back

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

Tags

CCSS.HSG.GPE.B.6

Front

What is the definition of a linear equation?

Back

An equation that makes a straight line when graphed.

Front

What does it mean for lines to be coincident?

Back

Coincident lines are lines that lie on top of each other, having infinitely many solutions.

Tags

CCSS.8.EE.C.8A