Special Right Triangle Lesson

Special Right Triangle Lesson

​What are the 3 ways to prove triangles are similar?

• ​AA

• ​SAS

• ​SSS

• If triangles are similar, all 3 pairs of corresponding anges are congruent.

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• ​If triangles are similar, all pairs of corresponding side increase or decrease by the same ratio (scale factor).

​Pythagorean Thereom Review

​Use the Pythagorean Theorem to find the missing side in the following triangles:

​45-45-90 Triangles

• ​

Multiple Choice

Find a.

• 5

• √2

• 5√2

• 2

Multiple Choice

Find a.

• 4

• 2

• 4√2

• 2√4

Multiple Choice

Find x.

• 4√3

• 4√6

• 4

• 4√8

​Pythagorean Thereom Review

​Use the Pythagorean Theorem to find the missing side in the following triangles:

​30-60-90 Triangles

• ​

Multiple Choice

Find x.

• 10
• 10√3
• 10√2
• 20

Multiple Choice

Find x.

• 22

• $$11\sqrt{3}$$

• $$11\sqrt{2}$$

• 11

Multiple Choice

Find a.

• 12

• 24

• $$24\sqrt{3}$$

• 16