chukwudi14
chukwudi14 chukwudi14
  • 06-05-2021
  • Mathematics
contestada

3 In AABC, B = 104.3°, C = 31.3°, a = 29-0cm.
Calculate c.​

Respuesta :

fichoh
fichoh fichoh
  • 11-05-2021

Answer:

21.53 m

Step-by-step explanation:

We can obtain the angle C;

C + 104.3 + 31.3 = 180 ( sin of angles in a triangle)

C = 180 - (104.3 + 31.3)

C = 44.4°

Using Sine rule :

c / sinC = a / sin A

Cross multiply :

c * sin44.4 = 29 * sin 31.3

c * sin44.4 = 15.066054

c = 15.066054 / sin 44.4

c = 15.066054 / 0.6996633

c = 21.533291

c = 21.53 m

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