Answer :
The unknown angle of the right triangle is as follows:
∠CBA = 28.8°
How to find the angle of a right triangle?
The triangle is a right triangle because one of its angle is equals to 90 degrees.
The angle ∠CBA, can be found using trigonometric rations,
hence,
tan ∅ = opposite / adjacent
where
∅ = ∠CBA
Therefore,
tan ∠CBA = opposite / adjacent
opposite side = 5.6 m
adjacent side = 10.2 m
Hence,
tan ∠CBA = 5.6 / 10.2
tan ∠CBA = 0.54901960784
tan ∠CBA = 0.54901960784
∠CBA = tan⁻¹ 0.54901960784
∠CBA = 28.7676493388
∠CBA = 28.8°
learn more on triangle here: brainly.com/question/27701864
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