Asked Sep 12, 2019

What is the angle of Angle A in a right triangle whose hypotenuse is 23cm and opposite side is 12cm?


Expert Answer

Step 1

Please see the diagram on the white board. It aptly explains the question. ABC is the triangle right angled at B. AC is the hypotenuse and BC is the opposite side.


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B 12 cm C 23 cm A

Step 2

Apply sine rule to this triangle for angle A.

Sin(A) = BC / AC = 12 / 23 = ...

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