Answer:
14°
Explanation:
Calculate the common side ZX to both right triangles.
Using the tangent ratio in the upper right triangle.
tan70° =
=
( multiply both sides by 3 )
3 × tan70° = ZX , thus
ZX ≈ 8.24
Using the cosine ratio in the lower right triangle.
cos ZXY =
=
=
, thus
∠ ZXY =
(
) ≈ 14° ( to the nearest degree )