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# Triangle Copy Help

last edited by 10 years, 7 months ago

 Do the givens. Draw base of triangle by clicking twice in drawing pad. Point A Point B a=Segment[A,B] Draw right side of triangle by clicking once on first point B and then above the base. Point C b=Segment[B,C] Draw left side of triangle by clicking once on first point C and then on point A. Point C c=Segment[C,A] Label: Use right-click to make a red, b blue and c green. Draw line segment by clicking twice in drawing pad. Point D Point E d=Line[D,E] Label: Use right-click to rename D -> P and to hide point E (if desired). Copy the base. Draw circle with radius the base of the triangle and center P by clicking on points A, B and P. Circle e=Circle[P, Segment[A, B] Label: Use right-click to make circle e red. Draw point D by clicking on 2nd intersection point of circle and line. D=Intersect[e, d, 2]. Draw circle f with radius the top of the angle and center P by clicking on points A, C and P. Circle f=Circle[P, Segment[A, C] Draw circle g with radius the segment BC and center P by clicking on points B, C and E. Circle g=Circle[E, Segment[B, C] Label: Use right-click to make circles f blue and g green. Draw point F by clicking on top intersection point of circles f and g. F=Intersect[f,g, 1]. Draw new triangle base segment by clicking on points P and E. h=Segment[P,E] Draw new triangle right side by clicking on points D and F. i=Segment[D,F] Draw new triangle left side by clicking on points P and F. j=Segment[P,F] Label: Use right-click to rename D -> R and F -> S. Label: Use right-click to make h red, i blue and j green. Decorate: Right-click on any circle, choose "Properties", style tab: line style=dotted. In left pane of Properties window, select other circles and repeat: line style=dotted. In left pane of Properties window, select line c and change: line style=dashed. Click on Close. Check construction. Click and drag vertices of triangle ABC to change its size. Copied triangle should match changes. Save construction. Command: File -> Save.

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