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Q. What is geometry?
Answer: Geometry is the branch of
mathematics in which we deals with points,
lines, curves, surfaces ...
Q. How many end points of a line
segment?
Answer: A line segment has two end points.
Q. How many end points of a line?
Answer: A line has no end point.
Q. How many end points of a ray?
Answer: A ray has only one end point.
Q. How many end points of a ray?
Answer: A ray has only one end point.
Example # 1: Draw a line segment 8cm in length
and divide it into 5 equal parts.
STEPS OF CONSTRUCTION:
• The line segment...
Q. What we have discussed today?
Answer: Dividing a line segment into equal parts.
Q. Name the instrument which we use for dividing
a line segment into equal parts.
Answer: We use Ruler, Pencil, Protector ...
Q. What is the first step of construction?
Answer: Draw a line segment of given length.
Q. What is the second step of construction?
Answer: At point A, draw an angle of 30° with
protector.
Q. What is the third step of construction?
Answer: Using compasses from point A, five arcs
are marked with suitable radius...
Q. What is the forth step of construction?
Answer: At point B, draw the same angle of 30°
with protector.
Q. What is the fifth step of construction?
Answer: Using compasses from point B five arcs
are marked with the same radius ...
Q. Which points will join from the given figure?
8cmA B
30°
X
30°
C
D
E
F
G
H
I
J
K
L
Y
Answer: Join the points A to
L, C ...
Activity
• Draw a line segment 6cm in length and
divide it into 4 equal parts.
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Zaheer abbasi
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DIVIDING A LINE SEGMENT INTO EQUAL PARTS

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Zaheer abbasi

  1. 1. Q. What is geometry? Answer: Geometry is the branch of mathematics in which we deals with points, lines, curves, surfaces and shapes.
  2. 2. Q. How many end points of a line segment? Answer: A line segment has two end points.
  3. 3. Q. How many end points of a line? Answer: A line has no end point.
  4. 4. Q. How many end points of a ray? Answer: A ray has only one end point.
  5. 5. Q. How many end points of a ray? Answer: A ray has only one end point.
  6. 6. Example # 1: Draw a line segment 8cm in length and divide it into 5 equal parts. STEPS OF CONSTRUCTION: • The line segment AB of length 8 cm is drawn. • At A, AX is drawn making an angle of 30° with protector. • Using compasses from point A, 5 arcs are drawn on AX with suitable radius mark their intersection points as C, D, E, F and G. Such that AC = CD = DE = EF = FG. • At B, BY is drawn making an angle of 30° with protector. • Using compasses from point B, 5 arcs are drawn on BY with same radius and mark their intersection points as H, I, J, K and L . Such that BH = HI = IJ = JK = KL. • Join the points A to L, C to K, D to J, E to I, F to H, and G to B. • Hence, line segment AB is divided into 5 equal parts. 8cmA B 30° X 30° C D E F G H I J K L Y
  7. 7. Q. What we have discussed today? Answer: Dividing a line segment into equal parts.
  8. 8. Q. Name the instrument which we use for dividing a line segment into equal parts. Answer: We use Ruler, Pencil, Protector and Compass for dividing a line segment into equal parts.
  9. 9. Q. What is the first step of construction? Answer: Draw a line segment of given length.
  10. 10. Q. What is the second step of construction? Answer: At point A, draw an angle of 30° with protector.
  11. 11. Q. What is the third step of construction? Answer: Using compasses from point A, five arcs are marked with suitable radius on AX.
  12. 12. Q. What is the forth step of construction? Answer: At point B, draw the same angle of 30° with protector.
  13. 13. Q. What is the fifth step of construction? Answer: Using compasses from point B five arcs are marked with the same radius on BY.
  14. 14. Q. Which points will join from the given figure? 8cmA B 30° X 30° C D E F G H I J K L Y Answer: Join the points A to L, C to K, D to J, E to I, F to H and G to B.
  15. 15. Activity • Draw a line segment 6cm in length and divide it into 4 equal parts.
  • TuhinAhmed2

    Apr. 7, 2018
  • superdeath007

    Apr. 16, 2016

DIVIDING A LINE SEGMENT INTO EQUAL PARTS

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