Question

Missing angle of 28 and 21 with trigonometry

Answer 1

Explanation:

as suggested, use SOH CAH TOA

we are given the H and O and want an angle

use SOH, b/c it's got the two given pieces of info

Sin(∅) = Opp / Hyp

Sin(x) = 21 / 28

arcSin ( Sin(x)) = arcSin(21/28)

x = 48.59°