Question

Please helped timed question. Solve for a, b, and A. Round to the nearest tenth.

Answer 1

`\angle A=90-72`

`\angle A=18`

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`sin~72=(b)/(11)`

`11* sin~72=6`

`b=10.5`

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`11* cos~72=a`

`a=3.4`

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ANSWER:

a=3.4

b=10.5

∠A=18

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