Triangles

Triangles

Tuesday Dec. 15, 2020

Multiple Choice

When determining if two figures are similar, what can you always look for?

• Sides only

• Angles only

• Scaled sides and congruent angles

• Nothing, ever

Back to proportions for a moment

Proportions are two ratios (fractions) set equal to each other that compare the corresponding parts of similar figures.

Okay, that was a lot of words... let's look at some

When writing proportions...

you need to decide how you want to write your ratios (same triangle as numerator, or split between top and bottom)

Examples to come

So many numbers...

You don't need numbers to write proportions. You can just as easily use the name of the sides.

Go practice

There is a PDF waiting for you in Google Classroom :)