Opener

1. Name a line, a segment, and a ray.

A

BC

D

E F

G

Use the diagram to answer the questions.

2. Name an acute, right, obtuse, and straight angle.

3. Name two angles whose measures would sum to 90 degrees. (are complementary)

Opener

1. Name a line, a segment, and a ray.

A

BC

D

E F

G

Use the diagram to answer the questions.

Opener

A

BC

D

E F

G

Use the diagram to answer the questions.

2. Name an acute, right, obtuse, and straight angle.

acute obtuse

right straight

Opener

A

BC

D

E F

G

Use the diagram to answer the questions.

3. Name two angles whose measures would sum to 90o. (are complementary)

or

Think / Record / Report

What is a real world object that has an obtuse angle?

THINK RECORD REPORT

What is a real world object that has an acute angle?

Blue

Red

Key Vocab:

n/a

Sentence Starter:

"A real world object that has..."

Essential Question

Learning Objective

What are the possible ways that lines can intersect? Is a circle a line?

I will use the definitions of parallel and perpendicular lines to solve problems.

graph

you should know:

What is perimeter and areahow to calculate perimeter and area of rectangles, squares, and trianglesundefined terms: point, line, planedefined terms: segment, ray, angle

what you've learned:

properties of perpendicular and parallel linesdefinition of circle

Parallel & Perpendicular Lines

A

B

C

D

E

F

G

H

Parallel, Perpendicular, & Skew?

"WE DO" TIME

Problem

a) b)

c) d)

Which shows parallel lines?

Problem

a) b)

c) d)

Which shows perpendicular lines?

Problem

a) b)

c) d)

Which term(s) are used to define parallel lines?

pointline

segment ray

Problem

a) b)

c) d)

Which term(s) are used to define perpendicular lines?

point line

segmentsquare

Problem

a) b)

c) d)

Which shows perpendicular lines?

Problem

a) b)

c) d)

Which shows parallel lines?

Problem

a) b)

c) d)

Which shows skew lines?

Essential Question

Learning Objective

What are the possible ways that lines can intersect? Is a circle a line?

I will use the definitions of parallel and perpendicular lines to solve problems.

Closure

A

B

C

E

D

F

G

Name a pair of sides that are parallel, perpendicular, and skew.

Parallel

Perpendicular

Skew

HW

HW #3

p.150#3-10,

34-37,40-43