Trig Ch. 12 Jeopardy

Formulas

100

a² + b² = c2

What is Pythagorean Theorem? 

200

a/SinA = b/SinB = c/SinC

What is Law of Sines?

300

Cos(A) = b² +c² - a² / 2bc

What is the Alternative Law of Cosines?

400

a² = b² + c² - 2bc x Cos(A)

What is Law Of Cosines?

500

A = √s(s-a)(s-b)(s-c) where s = (a+b+c)/2

What is Herron's Area Formula?

Unit Circle

100

(pi)/2

What is 90º in unit circle?

200

(pi)

What is 180º in the unit circle?

300

3(pi)/2

What is 270º in the unit circle?

400

2(pi)

What is 360º in the unit circle?

500

(pi)/6

What is 30º in the unit circle?

Sins

100

Sin120º

√3/2

200

7/Sin21º = x/Sin119º

x = 17.1

300

AAS

What can you use Sin to find?

400

ASA

What can you use Sin to find?

500

20/Sin38º = x/Sin114º

x = 139.32

Cos

100

cos48 = 17/x

x = 0.04

200

cosθ = 17/18

θ = 19.2º

300

SAS

What can you use Cos to Find?

400

SSS

What is Cos used to find?

500

cos(26) = x/15

x = 13.48

Tan

100

tan(14) = 18/x

x = 72.19

200

tanθ = 15/13

θ = 49.09

300

tan(78) = x/500

x = 2,358

400

tan(26) = x/ 1500

x = 1131.6

500

tanθ = 15.2/60

θ = 14.22