Any one know how to do this ?

so we have to figure out which kind of reasoning is involved into the sentence

"the ceiling and wall of a room meet in a line segment."

first of all lets look at what options do we have:

inductive reasoning: it is a logical process in which multiple premises, are all believed to be true or found true often, are combined to obtain a specific conclusion. also, it may happen that all the premises are true in the inductive reasoning there is a chance that conclusion might be false.

for an instance: the coin i pulled from my pocket is a dime. that coin is a dime.   a fourth coin from the pocket is a dime. therefore, all the coins in the pocket are dimes.

deductive reasoning: it is a logical process in which a conclusion is based on the accordance of multiple premises that are generally assumed to be true. it can start with a hypothesis.

for example: all men are mortal. arthur is a man. therefore, arthur is mortal.

talking about our sentence "ceiling and wall of a room meet in a line segment."

here we are deducing where the ceiling of a room ends and where does the wall of the room end and they end up forming a straight line limited by the dimension of the room, therefore, we say that ceiling and wall of a room meet in a line segment.