Open Up Lesson

Multiple Choice

Solve for b. $$b^2=2^2+4^2-2\left(2\right)\left(4\right)\cos\left(22\degree\right)$$  

• 5.17

• 2.27

• -8.83

• 1.61

Multiple Choice

To solve the triangle, which would we use?

• Law of sines

• Law of cosines

• SOH-CAH-TOA

• Pythagorean Theorem

Multiple Choice

To solve the triangle, which would we use?

• Law of sines

• Law of cosines

• SOH-CAH-TOA

• Pythagorean Theorem

Multiple Choice

To solve the triangle, which would we use?

• Law of sines

• Law of cosines

• SOH-CAH-TOA

• Pythagorean Theorem