Ch. 4/3 Geo Review (2023)

Front

What is the process to find the value of x in an equation?

Back

To find the value of x, isolate x on one side of the equation using inverse operations (addition, subtraction, multiplication, division) until x is alone.

Front

How do you round a number to the nearest tenth?

Back

To round a number to the nearest tenth, look at the hundredths place. If it is 5 or greater, round up the tenths place by one. If it is less than 5, keep the tenths place the same.

Front

What is probability?

Back

Probability is a measure of the likelihood that an event will occur, expressed as a ratio of the number of favorable outcomes to the total number of possible outcomes.

Front

How do you calculate the probability of selecting a specific item from a group?

Back

Front

What is the formula for the Pythagorean theorem?

Back

Front

How do you find the length of a missing side in a right triangle?

Back

Front

What does it mean for triangles to be similar?

Back

Triangles are similar if their corresponding angles are equal and their corresponding sides are in proportion.

Front

How can you determine if two triangles are similar?

Back

You can determine if two triangles are similar by checking if they have equal corresponding angles or if the ratios of their corresponding sides are equal.

Front

What is a dilation in geometry?

Back

A dilation is a transformation that changes the size of a figure but not its shape. It is defined by a center point and a scale factor.

Front

How do you find the coordinates of a point after dilation?

Back

To find the new coordinates after dilation, multiply the original coordinates by the scale factor. For example, for point B (-10, -6) and scale factor k = 1/2, the new coordinates are (-10 * 1/2, -6 * 1/2) = (-5, -3).