Compass Usage and Circle Drawing

The video tutorial introduces the concept of circles, focusing on the terminology and measurement of the radius. It provides a step-by-step guide on setting up a compass and using it to draw a circle accurately. The tutorial emphasizes the importance of knowing the radius and demonstrates the process of adjusting the compass to achieve the desired circle size.

What is the term used for the distance from the center of a circle to its edge?

• Diameter

• Circumference

• Radius

• Chord

How long is the radius mentioned in the video?

• 5 centimeters

• 4 centimeters

• 3 centimeters

• 2 centimeters

What tool is essential for measuring the radius accurately?

• A ruler

• A calculator

• A protractor

• A set square

Why is knowing the radius important when using a compass?

• To calculate the area of the circle

• To ensure the circle is drawn at the correct size

• To determine the color of the circle

• To decide the thickness of the line

What is the first thing you should do before drawing a circle?

• Choose a color for the circle

• Sharpen the pencil

• Find the center of the paper

• Determine the radius

What is the key to using a compass effectively?

• Knowing the diameter

• Knowing the radius

• Knowing the circumference

• Knowing the area

What is the first step in assembling a compass?

• Tighten the compass

• Draw a circle

• Measure the radius

• Insert a pencil into the compass

What should you do to ensure the pencil is aligned correctly in the compass?

• Sharpen the pencil

• Align the pencil point with the compass point

• Make sure the pencil is longer than the compass

• Use a colored pencil

How do you set the compass to the desired radius?

• By using a calculator

• By guessing the length

• By using a ruler to measure

• By using a protractor

What is the purpose of tightening the compass?

• To ensure the pencil does not move

• To change the pencil

• To make the compass heavier

• To adjust the color of the pencil