Please show me the complete solution on how did you come up with angle 3 and 4 thanks you

Algebra: Structure And Method, Book 1
(REV)00th Edition
ISBN:9780395977224
Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Publisher:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Chapter7: Applying Fractions
Section7.5: Percents
Problem 15WE
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Please show me the complete solution on how did you come up with angle 3 and 4 thanks you
Step2
b)
For Δ ΑEC,
-(1)
(2)
6 cos 03 + 5. 5 cos 04
8m
6 sin 63 =
: 5.5 sin 04
5.5 sin 04
()
-1
03 = sin
now from equation (1),
6 cos 03 + 5. 5 cos 04
8m
-1
5.5 sin 04
6 cos sin
- )+5. 5 cos 04 = 8
6
Solving above equation by trial method,
04 - 48. 55°
5.5 sin(48.55)
-1
03 = sin
= 43. 40°
03 + 04 + 05 = 180°
05
180°
43. 40° – 48. 55°
%3/
88. 05°
Transcribed Image Text:Step2 b) For Δ ΑEC, -(1) (2) 6 cos 03 + 5. 5 cos 04 8m 6 sin 63 = : 5.5 sin 04 5.5 sin 04 () -1 03 = sin now from equation (1), 6 cos 03 + 5. 5 cos 04 8m -1 5.5 sin 04 6 cos sin - )+5. 5 cos 04 = 8 6 Solving above equation by trial method, 04 - 48. 55° 5.5 sin(48.55) -1 03 = sin = 43. 40° 03 + 04 + 05 = 180° 05 180° 43. 40° – 48. 55° %3/ 88. 05°
D
02
5m
5m
4m
04
4m
03
5.5m
4m
6m
08
85
B
А
5m
Transcribed Image Text:D 02 5m 5m 4m 04 4m 03 5.5m 4m 6m 08 85 B А 5m
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