files/ Zane I -- Blogmeister
 Insko's Blogmeister This blog is for Miss Jovanovich's algebra and geometry classes to share ideas, ask questions, and reflect on what skills and topics we are studying. If we are lucky, we might even get a chance to connect with other students studying the same stuff.
 by Zane I teacher: Tina Jovanovich

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Constructions This blog is a little about constructions and what they mean to my life. I hope that everyone can benefit from this blog and enjoy it!
A construction is a way to draw angles or lines when you are unable to trace them. When composing a construction, you must use a compass, pencil, and straight edge. People use constructions to copy lines, construct angles, construct perpendicular bisectors, bisect angles, and even make right angles. Constructions are great and effective when a compass isn't available.
My favorite construction is a perpendicular bisector. A perpendicular bisector is when you draw a line directly through the middle of a segment. When drawing a perpendicular bisector, you compose two equal segments on one segment.I enjoy finding the perpendicular bisector of a segment because it is easy and fun to draw. It reminds me of when I was a young kid. On Halloween, or other situations where this occurred, I would always to try to find the middle of a treat to share with my friend. I would never really be able to cut this treat in half so we could each have exactly half. This would be useful for me now.
Step 1: Get a compass, writing utensil(preferably a pencil), and a straight edge.
Step 2: You need a line segment to bisect. Draw a line segment and label it AB.
Step 3: Put the tip of the compass on endpoint A.
Step 4: Open your compass to more than half way of the line segment.
Step 5: Draw an arc through line segment AB(make sure to go more than half way!)
Step 6: Place the same compass setting on endpoint B.
Step 7: Draw an arc through line segment AB.
Step 8: Label the points where the two arcs intersect as Y and Z. Step 9: Place your straight edge where these two arcs intersect.
Step 10: Draw a line through these arcs.
Step 11: You have successfully constructed a perpendicular bisector. Celebrate!

Article posted October 17, 2011 at 09:09 AM • comment • Reads 122 • Return to Blog List