Answer:
12 / 24
Explanation:
ΔXZW is a 30-60-90 triangle whose sides are in the ratio of 1 : : 2, respectively
also, ΔXZW ≅ ΔYZW
so XW = 12
XZ = 24
WZ = 12
cos ratio of ∡XZW is WZ/XZ which is:
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