The area or the triangle is 161.7cm².
How to calculate the value?
From the information given, the following can be deduced:
sin 23° = opposite/hypotenuse
Let opposite = b
0.39 = b/30
b = 30 × 0.39 = 11.72
Area of triangle = 1/2 × b × h
= 1/2 × 11.72 × 27.6
= 161.7cm²
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