1-4_constructions

# Choose a point on the line and label it x 2 place the

• Notes
• apiccirello
• 8

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Choose a point on the line and label it X. 2. Place the compass point on X and draw arcs to intersect line a on both sides of a X. Label these points R and S. 3. Open the compass wider. Place the compass point at R and draw an arc above X. With the compass at the same setting, place the compass point at S and draw an arc that intersects the previous arc. Label this intersection point Y. 4. Use the straight edge to draw a line through X and Y. Is perpendicular to line a ? C ha pt er 1 53 Te ac hi ng G eo m etr y wi th M an ip ul ati ve s

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NAME DATE PERIOD . (Use with Lesson 1-5) Objective Constructing Perpendicular Lines . Materials pencils/pens compass straightedge protractor paper Construct a line perpendicular to another line through a point NOT on the line. 1. Draw a line and label it m . Choose any point above m and label it P. 2. Open the compass to a width greater than the shortest distance from P to m . Draw a large arc to intersect m twice. Label these points of intersection T and U. 3. Place the compass point at T and draw an arc below m. 4. Using the same compass setting, place the compass point at U. Draw an arc to intersect the one drawn from T. Label this point of intersection A.
5. Use the straightedge to draw a line through P and A. Is perpendicular to line m ?
• Fall '12
• JoAnnFox
• WI, Compass, B. Draw, U. Draw

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