Non-Right Triangles

Non-Right Triangles

Multiple Choice

A non-right triangle...

• has one right-angle

• has no right-angles

• can have any angle measures

Multiple Choice

Can we use the pythagorean theorem on non-right triangles?

• Yes

• No

Law of Sines & Law of Cosines

• We use Law of Sines and Law of Cosines to find missing side lengths & missing angle measures of a NON-right triangle

Multiple Select

Select ALL that show law of sines

• $\frac{\sin a}{A}=\frac{\sin b}{B}$

• $\frac{\sin b}{B}=\frac{\sin c}{C}$

• $\frac{\sin a}{A}=\frac{\sin b}{C}$

• $\frac{\sin a}{A}=\frac{\sin c}{C}$

• $\frac{\sin a}{B}=\frac{\sin b}{A}$

Multiple Choice

Try using Law of sines to find the following:

• 23.4

• 12.2

• 0.8

• 1.3

Multiple Choice

Try to use law of sines to solve the following:

• 20.3

• 11.9

• 0.6

• 5.7

Multiple Choice

When finding a missing angle measure, what kind of trig functions to we use?

• Regular (sin,cos, tan)

• Reciprocal

• Inverse

• Doesn't matter

Multiple Choice

Try this problem using law of cosines. Follow the same steps as the last problem

• 20.3

• 11.9

• 13.7

• 1.1

Multiple Choice

To solve for a triangke means...

• to find missing side lengths

• to find missing angle measures

• to find all missing side lengths AND angle measures

Multiple Choice

Try this one

• 8.4

• 22.8

• 23.9

• 31.9