A physical change is a type of change in which the form of matter is altered but one substance is not transformed into another. For example, crumbling up a piece of paper. It’s still a piece of paper and you uncrumble it and it is still paper.
Two triangles are similar if they have:
<span>all their angles equalcorresponding sides are in the same ratio</span>
But we don't need to know all three sides and all three angles ...two or three out of the six is usually enough.
There are three ways to find if two triangles are similar: AA, SAS and SSS:
Answer:
80.5
Step-by-step explanation:
