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# 17.1

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Geometry

Geometry

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• 1. Lesson 17.1 Lines and Rays
• 2. Point
• Names an exact point in space.
• Draw it (see left)
• Write it: point A
A
• 3. line
• A straight path that continues in both directions without end. It has no endpoints.
• Draw it:
• Write it: KL
K L
• 4. Line Segment
• Part of a line. It has two endpoints and all the points between them. It is the shortest distance between two points.
• Draw It:
• Read It: line segment KL
• Write It: KL
K L
• 5. Ray
• A ray is part of a line that has one endpoint and continues without end in one direction.
• Draw It:
• Write It: KL
K L
• 6. Plane
• A flat surface of points that continue without end in all directions. A plane is named by at least three points in the plane.
• Draw It:
• Write It: plane ABC
A B C
• 7. Draw
• Line BC
• Line segment PQ
• Point G
• Plane RST
• Line ST
• Ray XY
• 8. Draw
• BY
• BY
• BY
• Point B
• Point Y
• Plane BYU
• 9.