narcisomtz123
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I will mark brainliest for the 1st and second answer but I need this before midnight
If I think your answer is not good enough I will delete your answer.

I will mark brainliest for the 1st and second answer but I need this before midnight If I think your answer is not good enough I will delete your answer class=

Respuesta :

ronhagrid310

Answer:

4.

A = arcsin(BC/AB)  = arcsin(4/10)  = ~23.58 deg

B = arccos(BC/AB) = arccos(4/10)= ~66.42 deg

AC = sqrt(AB^2-BC^2) = sqrt(10^2-4^2) = 9.16

5.

A = 90-B=90-20 =70

AB = AC/sinC = 30/sin(20deg) = ~87.71

BC = sqrt(AB^2-AC^2) = sqrt(87.71^2-30^2) = ~82.42

6.

AB = AC/cosA =125/cos(50deg) = ~194.46

B = 90-A = 90-50 =40

BC = sqrt(AB^2-AC^2) = sqrt(194.46^2-125^2) = ~148.96

7.

AB = AC/cosA =8/cos(20deg) = ~8.51

B=90-A =90-20=70

BC = sqrt(AB^2-AC^2) = sqrt(8.51^2-8^2) =~2.90

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