The presentation illustrates the problem.

What type of sentence is this?

Answer: Simple Sentence

Explanation:

This sentence is also having another name which is the Independent clause and this sentence is showing the whole meaning of it.

It has a subject which is ''The presentation'' and it has only one predicate which is the word ''illustrates'' and with both of them, this independent clause is expressing a complete thought.

There are more types of sentences which are Compound, Complex and Compound-Complex.