# Programed instructional material: circle

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1. 1. Topic: Circle Class: 9th Medium: English Lets start module 1 Programmed Instructional material
2. 2. Objectives At the end of this module you will be able to:- Define the concept of circle Know the formula of area of circle define the parts of circle Lets start module 2
3. 3. Circle A circle is a closed curve consisting of all the parts in a plane which are at the same distance from a fixed points inside it. This fixed point inside a circle is called centre. A circle has one and only one center. Example of circle Bangle, CDS, cycle, and Round Table. Circle in which a line segment that joins any points on the circle to its centre is called a radius. A line segment that join any two points on the circle are passes through its centre is called diameter. A line segment that joins any two points on the circle is called a chord and a line that intersects the circle at any two points on the circle is called secant. And it is a line that cross the circle at exactly one points on the circle. This point is called of tangency. 3
4. 4. Q1:Circle is a figure -Four sided figures -Three sided figure -Closed figure -none of the above 4
8. 8. Q2:How many center are there in one circle -4 -3 -2 -1 8
12. 12. Q3: In a circle, two times the Radius is called -Diameter -chord -Tangent -Secant 12
16. 16. Q4: A line segment that joins any two points on the circle is called . -Radius -Diameter -Chord -None of the above 16
20. 20. Q5:The line that intersects the circle at exactly one point on the circle is called- -Secant -Tangent -Diameter -All of the above 20
24. 24. Congratulations you have Scored 50 marks! 24

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