## InterA.HelpConstructTriangleCopy History

January 02, 2010, at 10:45 AM by LFS -
Changed line 9 from:

[]Draw line segment by clicking twice in drawing pad.

to:

[]Draw base of angle by clicking twice in drawing pad.

[c]
[]Draw top of angle by clicking once on first point A and then above the base.
[]Point C
b=Segment[A,C]
[row]

Deleted line 19:
Decorate: Right-click on segment, choose properties, color tab: red, style tab: thickness=5. Click on Close.

[c]
[]Draw angle marker by clicking on points B, A and C.
[]Angle &alpha;=Angle[B, A, C]
[row]
[ colspan=3]

Decorate: Right-click on angle, choose "Properties", basic tab: Show Label=Name, style tab: size=50. Click on Close.

[row]

Changed lines 29-32 from:

[]Draw line by clicking twice in drawing pad.
[]Point C
Point D
b=Line[C,D]

to:

[]Draw line segment by clicking twice in drawing pad.
[]Point D
Point E
c=Line[D,E]

Changed line 34 from:

[ colspan=3]Label: Use right-click to rename C -> P and to hide point D.

to:

[ colspan=3]Label: Use right-click to rename D -> P and to hide point E.

Changed line 36 from:

[ colspan=3]Copy the segment.

to:

[ colspan=3]Copy the angle.

Changed lines 39-40 from:

[]Draw circle with radius the segment and center P by clicking on points A, B and then P.
[]Circle c=Circle[P, Segment[A, B]

to:

[]Draw circle with radius the base of the angle and center P by clicking on points A, B and P.
[]Circle d=Circle[P, Segment[A, B]

Changed line 43 from:

[]Draw point C by clicking on 2nd intersection point of circle and line.

to:

[]Draw point D by clicking on 2nd intersection point of circle and line.

Changed lines 46-48 from:

[c]
[]Draw line segment by clicking on points P and C.
[]d=Segment[P,C]

to:

[c]
[]Draw circle with radius the top of the angle and center P by clicking on points A, C and P.
[]Circle e=Circle[P, Segment[A, C]

Changed lines 50-52 from:

[ colspan=3]Label: Use right-click to hide/show labels on segment.

Decorate: Right-click on new segment, choose "Segment d", choose "Properties", color tab: red, style tab: thickness=5. Don't close.
Click on "Circle c", style tab: line style=dotted. Click on Close.
to:

[c]
[]Draw circle with radius the segment BC and center P by clicking on points B, C and E.
[]Circle f=Circle[E, Segment[B, C]

Changed lines 54-56 from:

[ colspan=3]Check construction.

to:

[c]
[]Draw point F by clicking on top intersection point of circles e and f.
[]F=Intersect[e, f, 1].

Changed lines 58-68 from:
to:

[c]
[]Draw new angle base segment by clicking on points P and E.
[]g=Segment[P,E]

Changed lines 62-66 from:
to:

[c]
[]Draw new angle top segment by clicking on points P and F.
[]h=Segment[P,F]

Changed lines 66-98 from:
to:
Changed line 111 from:
to:
January 02, 2010, at 10:44 AM by LFS -