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Draw to lines in your notebook line the ones below. What is true about the lines?

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Draw to lines in your notebook line the ones below. What is true about the lines?. THEY ARE PARALLEL. MARK THEM. Draw a transversal. A transversal is a line that intersects two other lines. Label the intersection points A & B. Draw another transversal that intersects B. - PowerPoint PPT Presentation

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Page 1: Draw to lines in your notebook line the ones below.  What is true about the lines?
Page 2: Draw to lines in your notebook line the ones below.  What is true about the lines?

Draw to lines in your notebook line the ones below. What is true about the lines?

Page 3: Draw to lines in your notebook line the ones below.  What is true about the lines?

THEY ARE PARALLEL. MARK THEM.

Page 4: Draw to lines in your notebook line the ones below.  What is true about the lines?

Draw a transversal. A transversal is a line that intersects two other lines.

Page 5: Draw to lines in your notebook line the ones below.  What is true about the lines?

Label the intersection points A & B.

Page 6: Draw to lines in your notebook line the ones below.  What is true about the lines?

Draw another transversal that intersects B.

Page 7: Draw to lines in your notebook line the ones below.  What is true about the lines?

What angles are equal in this picture? You do not have to write this down.

Page 8: Draw to lines in your notebook line the ones below.  What is true about the lines?

Write this down. 1 5 since they are corresponding angles.

Page 9: Draw to lines in your notebook line the ones below.  What is true about the lines?

Draw another transversal that intersect point B. What is a transversal again?

Page 10: Draw to lines in your notebook line the ones below.  What is true about the lines?

Draw another transversal that intersect point B. What is a transversal again?

Page 11: Draw to lines in your notebook line the ones below.  What is true about the lines?

Which angle is congruent to 9?Why?

Page 12: Draw to lines in your notebook line the ones below.  What is true about the lines?

Which angle is congruent to 9?Why?

Page 13: Draw to lines in your notebook line the ones below.  What is true about the lines?

9 11 since they are corresponding angles. Write this down.

Page 14: Draw to lines in your notebook line the ones below.  What is true about the lines?

9 11 since they are corresponding angles. Mark this in your diagram.

Page 15: Draw to lines in your notebook line the ones below.  What is true about the lines?

Are there other angles that are congruent?

Page 16: Draw to lines in your notebook line the ones below.  What is true about the lines?

15 16 because they are vertical angles.

Page 18: Draw to lines in your notebook line the ones below.  What is true about the lines?

THE SUM OF THE ANGLES IN A TRIANGLE ADD TO 180

Page 19: Draw to lines in your notebook line the ones below.  What is true about the lines?
Page 20: Draw to lines in your notebook line the ones below.  What is true about the lines?

Website regarding triangleshttp://argyll.epsb.ca/jreed/math9/strand3/3103.htmhttp://www.ies.co.jp/math/java/geo/san180/san180.html

Practice Problems:

HW

Page 21: Draw to lines in your notebook line the ones below.  What is true about the lines?
Page 22: Draw to lines in your notebook line the ones below.  What is true about the lines?

Triangles in Architecture

Page 23: Draw to lines in your notebook line the ones below.  What is true about the lines?

New design for a building in London; has not been completed yet.

Page 25: Draw to lines in your notebook line the ones below.  What is true about the lines?

Close up view of the Hearst Tower.

Page 26: Draw to lines in your notebook line the ones below.  What is true about the lines?

The inside of a dome.

Page 27: Draw to lines in your notebook line the ones below.  What is true about the lines?

Truss bridges use the triangle — a very stable shape — to distribute load forces.

Page 28: Draw to lines in your notebook line the ones below.  What is true about the lines?

Howrah Bridge spans over the Hooghly River in West Bengal, India.

Page 29: Draw to lines in your notebook line the ones below.  What is true about the lines?

The Little Belt Bridge also known as The Old Little Belt Bridge, is a truss bridge over the Little Belt strait in Denmark.

Page 30: Draw to lines in your notebook line the ones below.  What is true about the lines?

The pyramids of Giza in Cairo, Egypt

Page 31: Draw to lines in your notebook line the ones below.  What is true about the lines?

Unitarian Meeting House built by Frank Lloyd Wright in Madison, Wisconsin.