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A, B & C form the vertices of a triangle. ∠ CAB = 90°, ∠ ABC = 66° and AB = 9.2. Calculate the length of BC rounded to 3 SF.

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The length of BC is 22.7

What is a right angled triangle?

A right angled triangle is one in which of the the angles is 90 degrees.

Analysis:

in the triangle AB = adjacent, BC = hypotenuse Ac = opposite

cos 66 = 9.2/BC

BC = 9.2/cos 66 = 9.2/0.406 = 22.7

In conclusion, the length of side BC is 22.7