# Proportion Of Angles 2018

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### #1 msbiljanica

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Posted 26 January 2018 - 11:37 AM

see the description of the construction
slider - $alpha$ -select the angle
slider - point P - ruler with a socket, point Q must be line n

### #2 exchemist

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Posted 26 January 2018 - 03:27 PM

see the description of the construction
slider - $alpha$ -select the angle
slider - point P - ruler with a socket, point Q must be line n

Why?

### #3 Turtle

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Posted 26 January 2018 - 04:07 PM

The proportion of angels is always variable.

### #4 msbiljanica

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Posted 28 January 2018 - 02:52 AM

variable angle  \alpha,

constant ruler (PT\infty\infty)and divider (PUQ)

slider (P) is cross-sectional variable angle and constant ruler and divider ( point Q on the line n)

Whether you are from the previous understand how it works proportions of angles, or that you explain step by step?

### #5 msbiljanica

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Posted 07 February 2018 - 10:23 AM

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on the ruler  $AB\infty{_1}\infty{_2}$ , raises divider ADC where AB + AB = AC, ruler sets the angle $\alpha$
semi-line ruler $B\infty{_1}$ sliding on point E , the point A of ruler slides semi-line l  ,  when point C is on the line n , we get the radius of the circle , we get the angle $\beta$
we have solved the tricection of any angle

Look at the construction protocol , or find the error if there is ....

### #6 Turtle

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Posted 07 February 2018 - 11:08 AM

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on the ruler  $AB\infty{_1}\infty{_2}$ , raises divider ADC where AB + AB = AC, ruler sets the angle $\alpha$
semi-line ruler $B\infty{_1}$ sliding on point E , the point A of ruler slides semi-line l  ,  when point C is on the line n , we get the radius of the circle , we get the angle $\beta$
we have solved the tricection of any angle

Look at the construction protocol , or find the error if there is ....

The classic trisection problem specifies tools as straightedge and compass only. Trisection using a ruler is not a problem.

### #7 msbiljanica

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Posted 12 February 2018 - 10:39 AM

Turtle - The classic trisection problem specifies tools as straightedge and compass only

straightedge slip on the point B  - line i

divider  FIG , slides on straightedge , after slipping point F straighte line BC , point  G describes lokus1

section lokus1 and line k point J , when changing the angle, the point J must be manually set to the intersection