R.1 Trigonometric ratios: sin, cos and tan
Find the sine of D.

Answer:
Below.
Step-by-step explanation:
Using Pythagoras theorem:
(√69)^2 = (√47)^2 + BC^2
BC^2 = 69-47 = 22
BC = √22.
sin D = BC / CD
= √22/√69
= 0.5647 to nearest ten thousandth.