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Forum: Construction Questions

Post specific constructions questions in this forum.

  1. Sticky Thread Sticky: Forum for construction questions

    If you have a how-to question, please post to the Construction Questions forum. You can attach sketches to your post. Happy sketching! ...

    Started by Elizabeth DeCarli, 05-31-2011 04:56 PM
    • Replies: 0
    • Views: 4,262
    05-31-2011 04:56 PM Go to last post
  1. Constructing an accurate tangent line along the exterior of a circle

    I am using Geometer's Sketchpad version 5.04 and I wanted to illustrate the the law that: 1. If a secant segment and a tangent segment to the...

    Started by Robwinfield, 06-08-2012 12:37 PM
    • Replies: 9
    • Views: 21,145
    06-20-2012 04:12 AM Go to last post
  2. Question How do I zoom a sketch?

    My daughter's teacher is asking her to construct quadrilaterals within quadrilaterals. How does she zoom in to get a closer look at the smaller,...

    Started by Brint, 04-05-2013 05:44 PM
    • Replies: 1
    • Views: 19,563
    04-06-2013 08:54 PM Go to last post
  3. How do change the default period in a sine or cosine wave to π or 3π instead of 2π

    OK, so in the trigonometry graph I am able to plot phase shift and vertical shifts of sine and cosine waves. However, I am not able to get it to...

    Started by Robwinfield, 06-20-2012 06:30 AM
    • Replies: 4
    • Views: 19,294
    01-21-2013 02:05 AM Go to last post
  4. Fixing the length

    Is it possible to fix the length of a line segment so you can move it around (including rotation) and not change the measure?

    Started by Steve R, 04-04-2013 11:22 AM
    • Replies: 8
    • Views: 11,182
    10-10-2014 09:59 PM Go to last post
  5. rectangular to polar coordinate and inverse tangent function

    I'm creating a lab for my trig classes where they use sliders to transform the x and y coordinates of a point to the polar coordinates. Everything...

    Started by Mr H, 02-23-2013 06:03 PM
    • Replies: 2
    • Views: 9,214
    02-25-2013 09:56 AM Go to last post
  6. Default settings for labels

    When adding labels to sketches I always use bold 24 size font. I can't find a way to make this the default setting for labels. Does this function...

    Started by adrayton, 03-16-2011 07:59 PM
    • Replies: 8
    • Views: 8,969
    12-06-2011 04:57 PM Go to last post
  7. Question How can a Square root spiral be constructed using GSP?

    We need to rotate a point by 90 degrees keeping a distance fixed. Imagine we have a triangle DBC where BC is base and DB is perpendicular. <DBC is 90...

    Started by Vicky_1984, 05-07-2012 11:17 PM
    • Replies: 4
    • Views: 8,525
    05-09-2012 05:57 AM Go to last post
  8. Plot a function into an interval

    How can I plot a function into a defined interval? For example f(x) for x>0 or for -5 < x < 5. Thanks Emil

    Started by EmilLask, 12-07-2012 02:49 AM
    • Replies: 4
    • Views: 8,375
    12-08-2012 08:29 PM Go to last post
  9. Question How to teach addition and subtraction of like and unlike fractions using GSP?

    I saw one 'Make fraction' tool on this community which could construct any fraction and resemble it in a circle. Thinking on the same grounds I am...

    Started by Vicky_1984, 07-04-2012 12:04 AM
    • Replies: 1
    • Views: 7,740
    07-05-2012 11:48 AM Go to last post
  10. right angle indicator/marker

    How do I get an indicator/marker/"thingy" for a right angle? I'm dropping a perpendicular in a triangle and want to show the little square in the...

    Started by EJ, 11-12-2012 01:35 PM
    perpendicular, right angle
    • Replies: 1
    • Views: 7,441
    11-13-2012 03:35 PM Go to last post
  11. Scales on sketches

    I am interested in graphing the functions y=x^3 and y=e^x on the same sketch but want to, somehow, make the vertical scale go from 0 to 12000 so that...

    Started by jthrelkeld, 10-27-2010 07:19 AM
    • Replies: 7
    • Views: 7,393
    11-20-2010 04:18 AM Go to last post
  12. Advanced Techniques for Algebra

    We had a pretty interesting Tech Support question that came in recently: "I'd like to create a graph of the relation |y|=x^3-x. How do I do it?" ...

    Started by Stek, 11-18-2010 07:21 PM
    • Replies: 8
    • Views: 7,340
    11-08-2011 08:16 PM Go to last post
  13. How-to Questions

    How do you construct a trapezoid that isn't a parallelogram?

    Started by edecarli, 10-20-2010 04:39 PM
    • Replies: 6
    • Views: 7,241
    04-03-2011 11:38 AM Go to last post
  14. Exterior Angles--how to

    TeacherJ had a great idea to post step-by-step directions about how to create sketches. There is a sketch on Sketchpad Lesson Link about...

    Started by ams20518, 11-19-2010 12:04 PM
    • Replies: 6
    • Views: 7,141
    11-29-2010 09:47 AM Go to last post
  15. How do I construct an arc sector of a circle (a slice of pizza shape)

    Dear Sketchers, I want to use the area of a sector equation, so I need to be able to construct a polygon from a central angle of the circle that...

    Started by Robwinfield, 07-22-2012 11:08 AM
    • Replies: 2
    • Views: 7,042
    07-22-2012 06:12 PM Go to last post
  16. Graphing Hyperbolas and Ellipses

    A user recently asked how to graph a hyperbola. Because hyperbolas and ellipses cannot be expressed explicitly as functions, they must be graphed as...

    Started by Stek, 03-27-2012 06:17 PM
    • Replies: 0
    • Views: 7,006
    03-27-2012 06:17 PM Go to last post
  17. Inequalities

    Hi everyone, I can't graph inequalities. Can you help me? Thank in advance Emil

    Started by EmilLask, 11-30-2012 10:50 AM
    • Replies: 6
    • Views: 6,949
    12-04-2012 08:19 PM Go to last post
  18. How can I animate the steps of a construction, step by step?

    I want to be able to step through a construction in a step by step fashion. I'm thinking of the equivalent to the ability to do custom animation...

    Started by ironick, 03-21-2013 04:37 PM
    • Replies: 3
    • Views: 6,941
    04-11-2013 10:00 AM Go to last post
  19. Lightbulb Action buttons

    Hi, Can someone please explain why the action buttons rearrange themselves to a different order when I use Cmd shift to tidy up my presentation....

    Started by Ceorl, 05-31-2013 05:34 AM
    • Replies: 4
    • Views: 6,567
    06-04-2013 11:36 AM Go to last post
  20. Conditions on When to Hide and Object

    Is it possible to place conditions on when to hide an object? I want a line segent to be hidden after it gets larger than another line segment in...

    Started by lkdick, 10-14-2011 10:37 AM
    • Replies: 7
    • Views: 6,403
    12-19-2011 08:06 AM Go to last post

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