Let triangle ABC be a triangle with side lengths a, b, and c,as show.pdf

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This document discusses finding the sine of an angle in a triangle given some information. It describes drawing an altitude from vertex A to side BC of triangle ABC, with side lengths a, b, and c. The document states that to find the sine of angle C, the formula is the length of the altitude h over the length of side b, or sin C = h/b.

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Let triangle ABC be a triangle with side lengths a, b, and c,as shown. An altitude is drawn from
A to side BC. Let h be the length of the altitude.
What is sin C? Sometimes we may need to find the urea of a truing follow the instructions below
to derive a formula f know two side lengths and the measure of the inch Let ABC be a triangle
with side lengths a, b, and the altitude.
Solution
sin C = h/b
=> h = b * sin C

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