Introduction to Proofs Review

A ​ (a)   ​ ​is a logical ​ (b)  

of statements and ​ (c)   used to ​ (d)   that a ​ (e)   mathematical concept or idea is true.​

• proof
• set
• reasons
• prove
• given

I can use definitions in my paragraph proofs.

• True

• False

I can use postulates in my paragraph proofs.

• True

• False

I can use properties in my paragraph proofs.

• True

• False

I can not use theorems in my paragraph proofs.

• True

• False

Put the following in order of the steps needed to write a paragraph proof. (First to last.)

• Given information

• Statements and reasons

• Final reason/answer

What is "given information" in a proof?

• Words or information from a picture/diagram that is given to the problem solver

• The answer

• The properties you use to write a proof.

• Answer not listed

Why are proofs necessary in geometry?

• Because we all love them

• To make this class harder

• Shows that you understand clear, logical thinking

Paragraph proofs must be written in complete sentences.

• True

• False