makailafletcher106 makailafletcher106

15-06-2021
Mathematics

contestada

Need help with this

“Use the law of Cosines to find the missing side length. Set up and SHOW YOUR WORK”

1: 38km

2:48km

3:41km

4:46km

Need help with this Use the law of Cosines to find the missing side length Set up and SHOW YOUR WORK 1 38km 248km 341km 446km class=

Respuesta :

stephanienyambura2 stephanienyambura2

15-06-2021

Answer:

law of cosines states c^2=a^2+b^2-2abc

b^2=26^2+24^2-2(26×24)cos 134°

b^2=676+576-1248cos134°

cos134= -0.6946

b^2=1252-12(-0.6946)

12×(-0.6946)= -8.3352

b^2=1252-(-8.3352)

b^2=1252+8.3352

b^2=1260.33

b=√1260.33

b=35.50

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