Question

In the triangle below, determine the measure of side a.

Answer 1

\[21:42::a:90\]

Answer 2

you could use the sine function to solve this

Answer 3

meaning?

Answer 4

this will be quite easy if you're allowed to used calculators. Sin42 = a/21. To solve for a just isolate it with a little algebra. a = 21sin42

Answer 5

idk how t do tht tho like set it all up and stuff

Answer 6

http://tutorial.math.lamar.edu/Classes/CalcI/TrigFcns.aspx study it here

Answer 7

its not in calc its in geometry

Answer 8

I know. Did you check the site out? It will help you review on trigonometry. That's what you need to solve that problem

Answer 9

You're not going to use calculus. It's plain trigonometry