<p>Am I supposed to set my calculator to radians or degrees for the ACT?
Thanks</p>
<p>Radians or degrees are both used on the ACT. Just keep that in mind with every question. More so degrees than radians but radians are used on the trig questions occasionally. . .</p>
<p>I don’t understand how to know when to use each one though…I think mine was always set to degrees, but one day in class we switched it to radians and then when I was practicing for the ACT just now I was getting wrong answers on questions that involved trig functions until I switched it to degrees. I’ve never switched back and forth between the two depending on the question, just always had it on degrees, I think. When would I have to switch it to radians?</p>
<p>Radians – when you’re working with “theta” or if it says 0 < “theta” < 2 pi</p>
<p>yeah radians is pretty much when angles are put in terms of pi. degrees is just numerals 0-360</p>
<p>if calculator is too uncomfortable, you can just convert between with these:</p>
<p>(angle in degrees) x pi/180 = angle in radians</p>
<p>(angle in radians) x 180/pi = angle in degrees</p>
<p>If you see pi. Also if you get answers that aren’t options, try and switch them around. But if you see pi its always radians. </p>
<p>But with geometry that doesn’t have trig, its nearly always degrees i think. Only when you see stuff like sin and cos then it could be either I think?</p>