Mathematics, 18.07.2019 03:00, JvGaming2001

Ijust need a confirmation that my answer is right? find side ac. round to the nearest hundredth. the angles are: angle a = 40°, angle c = 90°, and angle b = 50°. side ba (the hypotenuse) = 3 cm. i did this: cos40° = ac/3 3cos40° = ac ac = -2.08, but a length can't be negative am i doing something wrong? or do i just write 2.08? i can't remember.

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Ijust need a confirmation that my answer is right? find side ac. round to the nearest hundredth. th...