Given that figure A is a triangle, and one of its sides has a length of 1 foot. It follows that its area is less than 1 square foot.
A) Inductive, weak.
B) Deductive, valid.
C) Deductive, invalid.
D) Deductive, sound.
E) Inductive, strong.

Question

Quizplus · Accepted Answer

This argument is deductive because it draws a conclusion based on the premises given. However, the conclusion is invalid because there are many triangles with one side of length 1 foot that have areas greater than 1 square foot (e.g. a right triangle with legs of length 1 foot has an area of 1/2 square foot). Therefore, the argument is not sound.

Given That Figure a Is a Triangle, and One of Its