lashaicohen17 lashaicohen17

05-03-2021
Mathematics

contestada

1. Solve triangle ABC if A = 42.3º, b = 12.9 meters, and c = 15.4 meters.

this is trigonometry, you have to use the cosine law to solve it

1 Solve triangle ABC if A 423º b 129 meters and c 154 meters this is trigonometry you have to use the cosine law to solve it class=

Respuesta :

noelpuig321 noelpuig321

05-03-2021

Answer:

a = 10.36m

B = 47.7º

C = 90º

Step-by-step explanation:

we know the angle of A so we do the sin of A; Spoiler: its 0.67

0.67 = a / 15.4

0.67 * 15.4 = a

a = 10.36

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B = 90 - 42.3 = 47.7º

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