4th Grade Math STAAR Prep Translated Rodriguez

Front

What does it mean for two lines to be perpendicular?

Back

Two lines are perpendicular if they intersect at a right angle (90 degrees).

Front

What is a right angle?

Back

A right angle is an angle that measures exactly 90 degrees.

Front

How do you find the measure of an unknown angle when you know one angle in a right triangle?

Back

Subtract the known angle from 90 degrees. For example, if one angle is 62 degrees, the other angle is 90 - 62 = 28 degrees.

Front

What is the equivalent fraction for the decimal 1.8?

Back

Front

How do you read a number line?

Back

A number line shows numbers in order. Each point on the line represents a number, and the distance between points represents the difference between those numbers.

Front

What is the measure of angle RST if it is given as 40 degrees?

Back

Angle RST measures 40 degrees.

Front

What is the value of point W on the number line if it is 11.6?

Back

Point W represents the number 11.6 on the number line.

Front

What is the sum of angles in a triangle?

Back

The sum of the angles in a triangle is always 180 degrees.

Front

What is an acute angle?

Back

An acute angle is an angle that measures less than 90 degrees.

Front

What is an obtuse angle?

Back

An obtuse angle is an angle that measures more than 90 degrees but less than 180 degrees.