Inductive Reasoning
Points, Lines, Segments, Rays, & Planes
Postulates
Conditional Statements
Area & Perimeter/ Extra Vocab
100
What is a conjecture?

A conclusion you reach by using inductive reasoning.

100

This is how you name a point.

With a capital printed letter.

100

A postulate (or axiom) is an accepted statement of what?

Fact

100

2 statements joined by a condition are called:

If-Then statements.

100

What is the formula for the area of a rectangle, and how do we express our units in these types of problems?

A = (l)(w)

units2

200

This is how we show a conjecture is false.

By using a counterexample

200

Rays are named by:

Exactly 2 points (1 point must be the endpoint which will be listed first, and the other can be any other point on the ray) with the proper ray notation above them.

200

If 2 lines intersect, they intersect where?

At exactly 1 point.

200

We associate "if" with:

the hypothesis.

200

How do you find the perimeter of a shape?

Add up all of its side lengths since it is the distance around the figure.

300

Show that this statement is false:

The sum of two numbers is always greater than both numbers.

Zero added to any number will prove this to be wrong! A negative number added to a positive number will show this is false as well.

300

Segments are named by:

Exactly 2 points on the segment with the proper segment notation (bar) above them.

300

Through any 3 noncollinear points, there exists what?

Exactly one plane.

300

We associate "then" with:

the conclusion.

300

Collinear points are:

Points on the same line.

400

Determine the pattern!

297, 99, 33, 11,...

The pattern is division by 3.

400

A line is named by: (2 ways)

A lowercase script letter, or exactly two points on the line with the proper line notation above them.

400

Through any two points, there are how many lines?

Exactly one.

400

Is the converse of a statement always true?

NO! 

400

T/F: To find the area of a parallelogram, we use the same formula that we do to find the area of a rectangle.

False!

500

Determine the next two terms in the sequence:

1, 2, 5, 10, 17, _ , _

26, 37

500

A plane is named by: (2 ways)

A capital script letter, or at least three points on the plane.

500

If 2 planes intersect, they intersect where?

At exactly 1 line.

500

What is the converse of this statement?

If it is Friday, then the class periods are only half as long.

If the class periods are only half as long, then it is Friday.

500

What is the perimeter of a rectangle with length 13 inches and width 7 inches?

P = 2(13) + 2(7) = 26 + 14 = 40 inches

M
e
n
u