Question

Calculate the length of WZ to the nearest tenth of a centimetre. Show all of your

work for a full mark. (HINT: this is a two-steps problem)
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Answer 1

WZ ≈ 16.4 cm

Explanation:

Step 1: Find length XZ

tan40° = XZ/15

15tan40° = XZ

XZ = 12.5865

Step 2: Find WZ

sin50° = 12.5865/WZ

WZsin50° = 12.5865

WZ = 12.5865/sin50°

WZ = 16.4305

WZ ≈ 16.4 cm