Ohio State Math Test- 7th Grade

Front

What is the diameter of a circle?

Back

The diameter is the distance across a circle through its center, equal to twice the radius.

Front

What is the radius of a circle?

Back

The radius is the distance from the center of the circle to any point on its circumference.

Front

What is the result of dividing 7.2 by 0.6?

Back

12

Front

How do you find the ratio of boys to girls in a class of 30 students with 18 girls?

Back

The ratio of boys to girls is 2:3.

Front

What does C represent in the formula C = π·d?

Back

C represents the circumference of the circle.

Front

If the scale factor between two similar figures is 3:5, what is the relationship between their areas?

Back

The area of the larger figure is 25/9 times the area of the smaller figure.

Front

What is the formula for the area of a circle?

Back

The area A of a circle is given by A = π·r², where r is the radius.

Front

What is the formula for the circumference of a circle?

Back

The circumference C of a circle is given by C = π·d, where d is the diameter.

Front

How do you convert a fraction to a decimal?

Back

Divide the numerator by the denominator.

Front

What is a ratio?

Back

A ratio is a comparison of two quantities, showing the relative sizes of two or more values.