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14-08-2021
Mathematics

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Find a.
Round to the nearest tenth:
2 cm
150
105
a = [? ]cm
Law of Sines: sin A sin B
sin C
b

Find a Round to the nearest tenth 2 cm 150 105 a cm Law of Sines sin A sin B sin C b class=

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cwrw238 cwrw238

14-08-2021

Answer:

1.8 cm to the nearest tenth.

Step-by-step explanation:

The angle opposite side a = 180 - 105 - 15 = 60 degrees.

By the Sine Rule:

a / sin 60 = 2 / sin 105

a = 2 * sin60/ sin 105

= 1.79315

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