1. What is the value of 0 for the acute angle in a right triangle?




2. Roman stands across from a flag pole. What is the distance from Roman's feet to the base of the flag pole? Round only your final answer to the nearest tenth.

Guest Apr 17, 2017

Sine and cosine are co-functions.....


sin (90- theta)  =  cos(theta)


sin (90-73)  = cos(73)


sin (16°)  =  cos (73°)



For the second one, we are given an angle, the hypotenuse and we are trying to find the adjacent side......the cosine seems appropriate


cos (39)  = x / 17   multiply both sides by 17


17 * cos(39)  = x  ≈  13.2 m




cool cool cool

CPhill  Apr 17, 2017
edited by CPhill  Apr 17, 2017

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