8th Math STAAR Review #3

Front

What is the formula for the volume of a cylinder?

Back

The volume V of a cylinder can be calculated using the formula V = πr²h, where r is the radius and h is the height.

Front

What does it mean for a relationship to be proportional?

Back

A proportional relationship means that two quantities maintain a constant ratio. In a graph, this is represented by a straight line that passes through the origin.

Front

What is a non-proportional relationship?

Back

A non-proportional relationship does not maintain a constant ratio between two quantities. In a graph, it may be represented by a line that does not pass through the origin.

Front

How can you identify a proportional relationship from an equation?

Back

If the equation can be expressed in the form y = kx (where k is a constant), it is proportional.

Front

What is the circumference of a circle with radius r?

Back

The circumference C of a circle can be calculated using the formula C = 2πr.

Front

What is the perimeter of an equilateral triangle with side length x?

Back

The perimeter P of an equilateral triangle can be calculated using the formula P = 3x.

Front

What is the total surface area of a cylinder?

Back

The total surface area A of a cylinder can be calculated using the formula A = 2πr(h + r), where r is the radius and h is the height.

Front

What does the graph of y = 75x represent?

Back

The graph of y = 75x represents a proportional relationship, where y increases 75 times for every unit increase in x.

Front

What is the relationship between diameter and radius?

Back

The radius r of a circle is half of the diameter d, expressed as r = d/2.

Front

What is the formula for the area of a circle?

Back

The area A of a circle can be calculated using the formula A = πr².