15pointsis this a valid argument? given: if a closed geometric shape has three sides, then it is a triangle. closed geometric shape abc has three sides. conclusion: shape abc is a triangle. yes. this argument uses the law of syllogism. yes. this argument uses the law of detachment. no. this is an improper use of the law of detachment. no. this is an improper use of the law of syllogism.

Yes. This argument uses the Law of Detachment.

why: an example of the law of detachment is

no one needs to be a rocket scientist to know that if the battery of a car is dead, then the car will not start.

this is a knowledge that most of us have.

hope this helps???

plz tell me if it does

∠lno ≅ ∠lnm

∠oln ≅ ∠mln

step-by-step explanation:

given   that triangle lno is congruent to triangle lnm.

we have to fill up the blanks in the given question.

according to above order of congruency   kept in mind we can say that

∠lno ≅ ∠lnm

∠oln ≅ ∠mln

ln ≅ ln due to common in both.

hence, by sas congruency,

the side angle side rule   states that if two sides and the included angle of one triangle are congruent to another triangle, then these two triangles are congruent.