brokenheart1
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  • 23-03-2020
  • Mathematics
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PLEASE HELP! EASY GEOMETRY!

PLEASE HELP EASY GEOMETRY class=

Respuesta :

Favouredlyf Favouredlyf
  • 23-03-2020

Answer:

Step-by-step explanation:

We would apply the law of Cosines which is expressed as

a² = b² + c² - 2abCosA

Where a,b and c are the length of each side of the triangle and A is the angle corresponding to a. Therefore

BC² = 26² + 30² - 2(26 × 30)Cos95

BC² = 676 + 900 - 2(780)Cos95

BC² = 1576 - 1560Cos95

BC² = 1576 - 1560 × - 0.087

BC² = 1576 + 135.72

BC² = 1711.72

BC = √1711.72

BC = 41.4 to the nearest tenth

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