Semester Exam Review

Front

What is the formula for the area of a circle?

Back

Front

What does it mean for two figures to be similar?

Back

Two figures are similar if they have the same shape but not necessarily the same size. Their corresponding angles are equal, and their corresponding sides are in proportion.

Front

How do you calculate the area of a circle given its diameter?

Back

Front

What is the relationship between diameter and radius?

Back

Front

If a scale model is made with a scale of 1 inch to 20 feet, how do you find the height of the model if the actual height is 100 feet?

Back

Front

What is the value of x if two similar figures have corresponding sides in the ratio 2:3 and one side of the first figure is 4 cm?

Back

Front

What is the area of a circle with a radius of 5 cm?

Back

Front

How do you find the missing side of similar figures?

Back

Set up a proportion using the lengths of the corresponding sides of the similar figures.

Front

What is the scale factor if a model is 1/10 the size of the actual object?

Back

The scale factor is 1:10.

Front

If the diameter of a circle is 12 cm, what is the radius?

Back