cesar10123
cesar10123 cesar10123
  • 31-07-2020
  • Mathematics
contestada

Help please thanks don’t know how to do this

Help please thanks dont know how to do this class=

Respuesta :

ASimpleEngineer
ASimpleEngineer ASimpleEngineer
  • 31-07-2020

Answer:

a = 11.71 ; b = 15.56

Step-by-step explanation:

For this problem, we need two things.  The law of sines, and the sum of the interior angles of a triangle.

The law of sines is simply:

sin(A)/a = sin(B)/b = sin(C)/c

And the sum of interior angles of a triangle is 180.

45 + 110 + <C = 180

<C = 25

We can find the sides by simply applying the law of sines.

length b

7/sin(25) = b/sin(110)

b = 7sin(110)/sin(25)

b = 15.56

length a

7/sin(25) = a/sin(45)

a = 7sin(45)/sin(25)

a = 11.71

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