20-02-2020
Mathematics

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Use the diagram to answer the question

What is the measure of A

(Inverse trigonometry)

Use the diagram to answer the question What is the measure of A Inverse trigonometry class=

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Hrishii Hrishii

20-02-2020

Step-by-step explanation:

[tex]sin A = \frac{BC}{AC} \\ \\ \therefore \: sin A = \frac{13}{15} \\ \\ \therefore \: sin A = 0.866 \\ \\ \therefore \: sin A = sin \: 60 \degree \\ \\ \therefore \: A = \: 60 \degree \\ \\ [/tex]

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