Mrs. Rivas

International Studies Charter

School.

Below is a net of a polyhedron.

How many edges does the polyhedron have?

a) 6 b) 8 c) 12 d) 24

There are 8 triangles

Each triangle has 3 sides

So,

Each edge uses two sides

So, edges

Mrs. Rivas

International Studies Charter

School.

Section 2-5

REASONING IN ALGEBRA AND GEOMETRY

Mrs. Rivas

International Studies Charter

School.

Section 2-5

REASONING IN ALGEBRA AND GEOMETRY

Mrs. Rivas

International Studies Charter

School.

Section 2-5

REASONING IN ALGEBRA AND GEOMETRY

Mrs. Rivas

International Studies Charter

School.

Section 2-5

REASONING IN ALGEBRA AND GEOMETRY

x = 2x – 75 Definition of angle bisector

x + 75 = 2x Addition Property of Equality

x = 75 Subtraction Property of Equality

Mrs. Rivas

International Studies Charter

School.

Section 2-5

REASONING IN ALGEBRA AND GEOMETRY

Mrs. Rivas

International Studies Charter

School.

Section 2-5

REASONING IN ALGEBRA AND GEOMETRY

Mrs. Rivas

International Studies Charter

School.

Section 2-5

REASONING IN ALGEBRA AND GEOMETRY

Symmetric Property

Distributive Property

Multiplication Property

Reflexive Property

Mrs. Rivas

International Studies Charter

School.

Section 2-5

REASONING IN ALGEBRA AND GEOMETRY

Mrs. Rivas

International Studies Charter

School.

Section 2-5

REASONING IN ALGEBRA AND GEOMETRY

Mrs. Rivas

International Studies Charter

School.

Section 2-5

REASONING IN ALGEBRA AND GEOMETRY

Mrs. Rivas

International Studies Charter

School.

Section 2-5

REASONING IN ALGEBRA AND GEOMETRY

HomeworkWorksheet Section 2-5

Mrs. Rivas

International Studies Charter

School.

Section 2-5

REASONING IN ALGEBRA AND GEOMETRY