Warm - Up Solve the equations: 1. (1/2)x - 7 = 142. 2x - 9 = 5x + 15.

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Presentation transcript:

Warm - Up Solve the equations: 1. (1/2)x - 7 = x - 9 = 5x + 15

1.1 Identify Points, Lines, and Planes There are three types of geometric objects in the picture below. Can you find them?

A AB or BA M, ABC, CAB or BAC AB or BA AB BA

CAN YOU FIND THE VOCABULARY WORD THIS DEFINITION BELONGS TO??? Has no dimension. Represented by a dot.

CAN YOU FIND THE VOCABULARY WORD THIS DEFINITION BELONGS TO??? Has one dimension. Extends without end on both sides.

CAN YOU FIND THE VOCABULARY WORD THIS DEFINITION BELONGS TO??? Two dimensions. Extends without end. Contains 3 or more points.

These 3 words, point, line and plane, are what we call undefined terms in geometry. They do not have formal definitions but we agree upon what they mean. UNDEFINED TERMS!!!

CAN YOU FIND THE VOCABULARY WORD THIS DEFINITION BELONGS TO??? Consists of endpoints. Has finite length. We label it by its endpoints.

CAN YOU FIND THE VOCABULARY WORD THIS DEFINITION BELONGS TO??? Starts at a point and stretches out to infinity.

CAN YOU FIND THE VOCABULARY WORD THIS DEFINITION BELONGS TO??? Two rays that share a common endpoint and stretch out into opposite directions.

CAN YOU FIND THE VOCABULARY WORD THIS DEFINITION BELONGS TO??? Points that lie on the same line.

CAN YOU FIND THE VOCABULARY WORD THIS DEFINITION BELONGS TO??? Points that lie in the same plane.

CAN YOU FIND THE VOCABULARY WORD THIS DEFINITION BELONGS TO??? Set of points the figures have in common. CASE 1:CASE 2: CASE 3: 2 lines 1 point A point and line 1 point2 planes 1 line

IDENTIFY

Give another name for PR. Name all rays with endpoint Q. Circle the rays that are opposite rays.

CLASSWORK