7- 8. Find the area of the triangle. A=Vs(s-a)(s-b)(s-c) 7. 41 26 35 C 8. 31 17 A 57 tion in the tria

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter8: Applications Of Trigonometry
Section: Chapter Questions
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7 - 8. Find the area of the triangle.
4 = J5(s-a)(s=b{s=e) A=acs
A =.
7.
41
26
35
C
8.
C
31
17
B
A
57
Use the Law of Cosines to find the indicated missing information in the triangle.
a = b? +c² - 2bcCosA
b2 =a² +c² – 2acCosB
c2 = a² +b? - 2abCosC
a = 12 b=9 c=7
9.
;mZB =
;m2C =
mLA =
Transcribed Image Text:7 - 8. Find the area of the triangle. 4 = J5(s-a)(s=b{s=e) A=acs A =. 7. 41 26 35 C 8. C 31 17 B A 57 Use the Law of Cosines to find the indicated missing information in the triangle. a = b? +c² - 2bcCosA b2 =a² +c² – 2acCosB c2 = a² +b? - 2abCosC a = 12 b=9 c=7 9. ;mZB = ;m2C = mLA =
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