1 1 Understanding Points Lines and Planes Do

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1 -1 Understanding Points, Lines, and Planes Do Now: In your notebook, draw: A.

1 -1 Understanding Points, Lines, and Planes Do Now: In your notebook, draw: A. Sketch two lines intersecting in exactly one point. B. Sketch a figure that shows a line that lies in a plane. *Any point on the line also lies in the plane Holt Geometry

Understanding Points, Lines, Planes 1 -1 Homework answers: Textand p 8 -10 Holt Geometry

Understanding Points, Lines, Planes 1 -1 Homework answers: Textand p 8 -10 Holt Geometry

Understanding Points, Lines, Planes 1 -1 Homework answers: Textand p 8 -10 Holt Geometry

Understanding Points, Lines, Planes 1 -1 Homework answers: Textand p 8 -10 Holt Geometry

Understanding Points, Lines, Planes 1 -1 Homework answers: Textand p 8 -10 Holt Geometry

Understanding Points, Lines, Planes 1 -1 Homework answers: Textand p 8 -10 Holt Geometry

Understanding Points, Lines, Planes 1 -1 Homework answers: Textand p 8 -10 Holt Geometry

Understanding Points, Lines, Planes 1 -1 Homework answers: Textand p 8 -10 Holt Geometry

1 -1 Understanding Points, Lines, and Planes How would you define the following? A

1 -1 Understanding Points, Lines, and Planes How would you define the following? A point A ray A line A plane A segment Opposite rays Q: Which are the undefined terms? Holt Geometry

1 -1 Understanding Points, Lines, and Planes A construction is a geometric drawing that

1 -1 Understanding Points, Lines, and Planes A construction is a geometric drawing that uses a limited set of tools, usually compass and a straight edge. Geometric figures are congruent when they have the same shape and size. Holt Geometry ( )

1 -1 Understanding Points, Lines, and Planes Line segments with the same length are

1 -1 Understanding Points, Lines, and Planes Line segments with the same length are called congruent segments. A B The length of AB is 3 inches AB = CD AB is equal to CD Same measurement Holt Geometry D C The length of CD is 3 inches AB CD AB is congruent to CD Same shape and size

1 -1 Understanding Points, Lines, and Planes Figures that have the same measure may

1 -1 Understanding Points, Lines, and Planes Figures that have the same measure may not be congruent. A B The length of AB is 3 inches Is AB equal to CD? AB = CD Same measurement Holt Geometry D C The length of CD is 3 inches Is AB congruent to CD? AB CD Different shape

1 -1 Understanding Points, Lines, and Planes Constructions website: www. mathopenref. com http: //www.

1 -1 Understanding Points, Lines, and Planes Constructions website: www. mathopenref. com http: //www. mathopenref. com/constc opysegment. html On the paper provided, draw a line segment and label its endpoints Q & R. First, we are going to draw a REFERENCE LINE. Holt Geometry

Understanding. Copying Points, Lines, and Planes a Segment 1 -1 Construction: Draw a segment

Understanding. Copying Points, Lines, and Planes a Segment 1 -1 Construction: Draw a segment longer than QR and label a point on the line, named “S”. Set your compass to the length of QR. Place the compass at “S”. Draw an arc, labeling the new intersection “T”. ST has the same length as QR. Is QR equal to ST? Are they congruent? Holt Geometry

1 -1 Understanding Points, Lines, and Planes Segment Addition Postulate: If B is between

1 -1 Understanding Points, Lines, and Planes Segment Addition Postulate: If B is between A and C, then AB + BC = AC. If AB + BC = AC, then B is between A and C. (converse) A Holt Geometry B C

Points, Lines, 1 -1 Understanding Homework #3: and Planes bigideasmath. com p. 16 -17

Points, Lines, 1 -1 Understanding Homework #3: and Planes bigideasmath. com p. 16 -17 1, 2, 7, 16 -22 even, 28 Use the glossary in your text to make Flash Cards for all vocabulary from yesterday and today’s lessons. Bring them into class. point, line, plane, ray, segment, collinear, coplanar, noncollinear, opposite rays, congruent, equal. Holt Geometry

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