Petrarchan movation write human history
The demographic features about the audience that are considered when preparing an oral presentation should be based on a criterion and this includes the age, race, gender and purpose. When delivering an oral presentation, you should always consider the listeners if your topic is appropriate for them. This would encourage participation on the part of the audience too.
The Law of Cosines is used to find the remaining parts of an oblique (non-right) triangle when either the lengths of two sides and the measure of the included angle is known (SAS) or the lengths of the three sides (SSS) are known. The Law of Cosines states: ... c2=a2+b2−2ab cosC .