1.2 – Use Segments and Congruence

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Chapter 1.2 Using Segments and Congruence

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Presentation transcript:

1.2 – Use Segments and Congruence Geometry

Learning Target By the end of today’s lesson we will be able to successfully use segment postulates to identify congruent segments.

Vocabulary Postulate / Axiom: Theorem: A rule that is accepted without proof Theorem: A rule that can be proved

Vocabulary Distance “Ruler Postulate”: Congruent: Distance between two Points. Congruent: Things that have the same shape Different than length!

Measure the length of to the nearest tenth of a centimeter.

When three points are collinear, you can say that one point is BETWEEN the other two.

Segment Addition Postulate If B is between A and C, then AB + BC = _____ If AB + BC = AC, then B is between ___ and ___

Use the diagram to find KL

Use the diagram to find QS and PQ.

Point A is between M and T on Point A is between M and T on . Use the given information to write an equation in terms of x. Then, solve the equation. MA = 4x + 9 AT = x – 5 MT = 34

Line segments that have the same length are called CONGRUENT SEGMENTS.

Plot F(4, 5), G(–l, 5), H(3, 3), and J(3, –2) on the coordinate plane. Then determine whether and are congruent.

Plot A(–2, –1), B(4, –1), C(3, 0), and D(3, 5) on the coordinate plane Plot A(–2, –1), B(4, –1), C(3, 0), and D(3, 5) on the coordinate plane. Then determine if and are congruent.

Learning Target By the end of today’s lesson we will be able to successfully use segment postulates to identify congruent segments.

1.2 Homework 1.2 Book Worksheet

The locations shown lie in a straight line The locations shown lie in a straight line. Find the distance from the starting point to the destination.