Geometry Pass

What is the radius of this circle?

• 18

• 10

• 9

• 8

What does r represent in the formula:

A = π·r²

• circumference

• radius

• diameter

• squared

What is the radius of the circle.

• 7.5 cm

• 15 cm

• 30 cm

• 3.14

What is a good explanation of the relationship between the radius and diameter?

• The diameter is half of the radius

• The radius is half of the diamter

• The circumference is 3.14 times the diameter

A bicycle tire has a diameter of 27 inches. What is the radius?

• 27pi

• 13.5

• 81

• 25pi

A circular swimming pool is 21 feet in diameter.
How many feet around is the pool?

• 10.5 ft

• 42 ft

• 65.94 ft

• 131.95 ft

The diameter of a circle is:

• The measurement around the circle.

• The distance from an edge of a circle to another edge.

• The distance from the center of the circle to an edge of a circle

• The distance from an edge of a circle to another edge through the center. 

What type of triangle is shown?

• Isosceles

• Right-angled

• Equilateral

• Scalene

• 40 in²
• 40
• 40 in
• 4 in²

Find the area of the parallelogram.

• 12 units²

• 10 units²

• 13 units²

• 6 units