contestada

8. Error Analysis Danielle tests the following
conjecture.
If two angles share a common
vertex, then they are adjacent.
Her work is shown below. What error does
Danielle make?
Y
Angles that are adjacent share
a vertex. The statement is true.

Respuesta :

vtnguyen
Logically, we got the rule:
"A then B is true", the equivalent derived from that must be "Not B then Not A" is true.
In your case,
A = Angles that are adjustment
B = (the Angles) share a vertex.

She was against to the rule above.
Maybe i got your idea wrong :)

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