Circle Geometry and Circumference Problems

The video tutorial covers basic geometry concepts, focusing on circles and right triangles. It explains the properties of circles, including radius, diameter, and circumference, and how to calculate exact and approximate values using pi. The tutorial also includes practice problems and encourages independent learning through worksheets.

What is the diameter of a circle if its radius is 3 units?

• 9 units

• 3 units

• 12 units

• 6 units

In a right triangle, if one side is 5 and the hypotenuse is 13, what is the length of the other side?

• 12

• 10

• 15

• 8

What is the value of pi as a ratio of circumference to diameter?

• 2

• 3.14

• 4

• 3

If the diameter of a circle is 10, what is the exact circumference using pi?

• 10π

• 5π

• 15π

• 20π

For a circle with a radius of 5, what is the exact circumference?

• 15π

• 10π

• 20π

• 5π

If the diameter of a circle is 8, what is the approximate circumference using 3.14 for pi?

• 25.12

• 24.12

• 26.12

• 23.12

What is the approximate circumference of a circle with a radius of 7 using 3.14 for pi?

• 44.96

• 46.96

• 43.96

• 45.96

If the radius of a circle is 2, what is the approximate circumference using 3.14 for pi?

• 13.56

• 12.56

• 14.56

• 15.56

What is the approximate circumference of a circle with a diameter of 12 using 3.14 for pi?

• 37.68

• 36.68

• 38.68

• 39.68

For a circle with a diameter of 15, what is the approximate circumference using 3.14 for pi?

• 48.1

• 46.1

• 49.1

• 47.1