Understanding Circles: Apothem and Chord Concepts

The video tutorial by Kak Wahyu covers the basic elements of a circle for 6th-grade students. It begins with an introduction and a request to subscribe to the channel. The tutorial explains the concepts of radius, arc, and sector, highlighting how a sector is formed by two radii and an arc. It then discusses the chord and diameter, emphasizing that the diameter is a special chord passing through the circle's center. The video also introduces the apothem, a line perpendicular to a chord and bisecting it. The tutorial concludes with a reminder to engage with the content by commenting and subscribing.

What is the term for the line segment from the center of a circle to any point on its circumference?

• Apothem

• Radius

• Diameter

• Chord

What do you call the area enclosed by two radii and an arc?

• Chord

• Tangent

• Segment

• Sector

Which term describes a line segment connecting two points on a circle's boundary?

• Diameter

• Apothem

• Chord

• Radius

What is a diameter in relation to a chord?

• A chord that is parallel to the tangent

• A chord that is perpendicular to the radius

• A chord that passes through the center

• A chord that is the shortest

What is the name of the line that is perpendicular to a chord and passes through the circle's center?

• Radius

• Diameter

• Apothem

• Tangent

Which line divides a chord into two equal parts?

• Diameter

• Tangent

• Radius

• Apothem

What is the relationship between an apothem and a chord?

• The apothem is parallel to the chord

• The apothem bisects the chord

• The apothem is shorter than the chord

• The apothem is longer than the chord

What is the purpose of an apothem in a circle?

• To measure the circle's diameter

• To connect two points on the circle

• To divide a chord into two equal parts

• To measure the circle's circumference

What is the term for a line that is perpendicular to a chord and passes through the center of the circle?

• Radius

• Diameter

• Tangent

• Apothem

What should viewers do if they have questions about the lesson?

• Call the teacher

• Comment on the video

• Email the teacher

• Visit the school