Applying the cosine ratio, CAH, the size of angle XYZ, to 1 decimal place is calculated as: 54.3°.
What is the Cosine Ratio?
To solve a right triangle by relating the adjacent side to the hypotenuse, the cosine ratio is applied, which is: cos ∅ = adjacent/hypotenuse.
Given the parameters:
- ∅ = angle XYZ
- Hypotenuse = 12 cm
- Adjacent side = 7 cm
Apply the cosine ratio:
Cos (XYZ) = 7/12
Angle XYZ = cos^(-1)(7/12)
Angle XYZ = 54.3°
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