## Geometry Contructions

Step by step videos of Geometry Constructions for Irish Junior Certificate Math Exam

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## All Constructions

### Bisector of an angle, using only compass and straight edge,

1

https://youtu.be/J6iGa5UoL7M

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### Perpendicular bisector of a segment, using only compass and straight edge

2

https://youtu.be/Dpkt5yS2ETY

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### Line perpendicular to a given line l, passing through a given point not on l.

3

https://youtu.be/KiNeotxQ5mw

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### Line perpendicular to a given line l, passing through a given point on l

4

https://youtu.be/gDzVIUG36uI

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### Line parallel to given line, through a given point

5

https://youtu.be/4PesBbY-TRU

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### Division of a line into 2, 3 or any number of equal segments without measuring it

6

https://youtu.be/NXQA0jkmgQw

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### Line segment of a given length on a given ray

7

https://youtu.be/9zCjUVESJyg

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### Angle of a given number of degrees with a given ray as one arm

8

https://youtu.be/MybOpNj8vgk

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### Triangle, given lengths of 3 sides

9

https://youtu.be/urivXd755y8

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### Triangle, given SAS data

10

https://youtu.be/kbIpFOINQR8

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### Triangle, given ASA data

11

https://youtu.be/Pvz-jIqqeDs

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### Right-angled triangle, given one side and one of the acute angles

12

https://youtu.be/kWJljSoY8Oc

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### Line perpendicular to a given line l, passing through a given point on l

13

https://youtu.be/gDzVIUG36uI

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### Right-angled triangle, given length of hypotenuse and one other side

14

https://youtu.be/LpZTrl_jYnk

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### Rectangle given side lengths

15

https://youtu.be/EV16h34znEs

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### Right-angled triangle, given one side and one of the acute angles

16

https://youtu.be/kWJljSoY8Oc

Complete Course