Question

Angie did the following proof in her logic class. Which step in the indirect proof did she do incorrectly?
Prove: 12 is divisible by 6.
Step 1: Assume that 12 is not divisible by 6.
Step 2: 2 times 6 is equal to 12. 12 divided by 6 is 2.
Step 3: 12 is not divisible by 6.

Answer 1

Select one:
a. Step 3
b. Step 2
c. Step 1
d. Steps 1 and 2

Answer 2

@thomaster @ganeshie8 @ uri

Answer 3

Well if she assumes 12 is not divisible by 6, and in step two she says 12 is divided by 6, then surely her logic fails in step 2?

Answer 4

so it wouldn't be b or d

Answer 5

I would say b, Step 2

Answer 6

r u sure

Answer 7

Well it says she assumes 12 is not divisible by 6, but then in step two she divides 12 by 6 to get 2 which she couldn't do...

Answer 8

ok

Answer 9

r u good in geometry

Answer 10

What do you need help with?

Answer 11

I want to know if u r good in geometry

Answer 12

Fairly good, why?

Answer 13

I was just worried about ur smartscore

Answer 14

This isn't geometry...

Answer 15

yea it is