Tuesday, October 5, 2010

Geometry 3

posted by Mr Johari

Task 1
Find the definition of the following
(a) line bisector
(b) angle bisector


Task 2
Watch the following videos and learn how a line is bisected
Video 1


Video 2


Task 3
Complete the worksheet on CONSTRUCTION.

(a) TASK 1: To construct: an angle of 60°.

(b) TASK 2: To construct: the angle bisector of a given angle.

(c) TASK 3: To construct: A line through R perpendicular to PQ.

(d) TASK 4: To construct: A line through R parallel to PQ.

(e) TASK 5: To construct: A line 3 cm from PQ and parallel to PQ.


5 comments:

  1. Angle Bisector is either a line or a ray that divides the angle into half. Which means if an angle is 90°, and there is a angle bisector, the 2 angles would then be 45° each.

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  2. Task 1
    Angle bi-setion
    Bi-section is the process of a line intersecting it dividing it into 2 equal parts.
    So Angle bisection is the process of intersecting an angle into 2 equal parts/angles.

    ReplyDelete
  3. Task 1

    The internal angle bisector is the line or line segment that divides the angle into two equal parts.

    ReplyDelete
  4. Task 1 Line Bisector
    A line, ray or segment which cuts another line segment into two equal parts.

    ReplyDelete
  5. Line Bisector - A line which cuts another line into two equal parts
    Angle Bisector - It is a line that divides the angle into half.

    ReplyDelete