Question 280025
Find the missing sides and angles in the right triangle, where a is the side across from angle A, b across from B, and c across from the right angle. (Round your answers to 3 decimal places.)
c = 18, A = 20°

Since A + C must equal 90 we know C = 90 - 20 = 70.

We have then:

sin(20) = a/18
sin(70) = c/18

Solve for a and c.