Unit 12-15 Review

Front

What is a parallelogram?

Back

A parallelogram is a four-sided figure (quadrilateral) where opposite sides are parallel and equal in length.

Front

What conditions must be met for a quadrilateral to be classified as a parallelogram?

Back

The opposite sides must be equal in length, and the opposite angles must be equal.

Front

What is the value of x that makes ABCD a parallelogram if one pair of opposite angles is given as 66 degrees?

Back

x = 66 degrees.

Front

Define correlation in statistics.

Back

Correlation is a statistical measure that describes the extent to which two variables change together.

Front

What is a negative correlation?

Back

A negative correlation indicates that as one variable increases, the other variable tends to decrease.

Front

What is a line of best fit?

Back

A line of best fit is a straight line that best represents the data on a scatter plot, showing the trend of the data.

Front

How do you find the measure of an arc in a circle?

Back

The measure of an arc can be found using the formula: Arc Measure = (Central Angle/360) * Circumference of the Circle.

Front

What is the measure of arc AB if the central angle is 68 degrees?

Back

The measure of arc AB is 68 degrees.

Front

What is the formula for the area of a parallelogram?

Back

Area = base × height.

Front

What is the relationship between the angles in a parallelogram?

Back

In a parallelogram, opposite angles are equal, and adjacent angles are supplementary (add up to 180 degrees).