You would use the simple format SOH-CAH-TOA SOH: sine = opposite/hypotenuse CAH: cosine = adjacent/hypotenuse TOA: tangent = opposite/adjacent ---- So for this problem to find c you would use this equation: sin42= c/7 7sin42=c c=4.68
Then for d you would use this equation: tan48=d/4.68 4.68tan48=d =5.197
