Circle Geometry Concepts

Circle Geometry Concepts

Assessment

Interactive Video

Mathematics

9th - 10th Grade

Hard

Created by

Thomas White

FREE Resource

The video tutorial explains how to solve a math problem from the ASVAB test, focusing on finding the area of a circle given its circumference. It covers essential formulas for circumference and area, demonstrates how to calculate the radius from the given circumference, and finally, how to use the radius to find the area of the circle.

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15 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the circumference of a circle if its diameter is 6 units?

12π

18π

24π

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is a formula for the circumference of a circle?

πr²

2πr

2πd

πd²

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is NOT a formula for the circumference of a circle?

d/π

πr²

2πr

πd

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What happens to the circumference if the radius of a circle is halved?

It remains the same

It is doubled

It is quartered

It is halved

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the formula for the area of a circle?

2πd

πd

2πr

πr²

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why do we need the radius to find the area of a circle?

Because the radius is always given

Because the diameter is not used in any formula

Because the circumference formula includes the radius

Because the area formula includes the radius

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is true about the formulas for circles?

Area uses diameter, circumference uses radius

Both area and circumference use radius

Area uses radius, circumference uses diameter

Both area and circumference use diameter

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