Geometry 2-4 Guided Practice: Deductive Reasoning

By Matt Richardson
Last updated about 3 years ago
10 Questions

Solve It! You want to use the coupon to buy three different pairs of jeans. You have narrowed your choices to four pairs. The costs of the different pairs are $24.99, $39.99, $40.99, and $50.00.

If you spend as little as possible, what is the average amount per pair of jeans that you will pay? Explain.

Take Note: Summarize the Law of Detachment.

Problem 1 Got It?

Problem 1 Got It?

Take Note: Summarize the Law of Syllogism.

Problem 2 Got It? What can you conclude from the given information? What is your reasoning?

If a whole number ends in 0, then it is divisible by 10.
If a whole number is divisible by 10, then it is divisible by 5.

Problem 2 Got It? What can you conclude from the given information? What is your reasoning?

If ray AB and ray AD are opposite rays, then the two rays form a straight angle.
If two rays are opposite rays, then the two rays form a straight angle.

Problem 3 Got It? What can you conclude from the given information? What is your reasoning?

If a river is more than 4000 mi long, then it is longer than the Amazon.
If a river is longer than the Amazon, then it is the longest river in the world.
The Nile is 4132 mi long.

Take Note: Summarize the mathematical content of this lesson. What topics, ideas, and vocabulary were introduced?