Answer:
67.97 cm²
Explanation:
The area (A) of the triangle is calculated as
A = bc sinA
with b = 15, c = 10 and A = 115°, thus
A = 0.5 × 15 × 10 × sin115° = 75 × sin115° ≈ 67.97 cm²
a= 75 cm
a= 10×15
150÷2
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bc sinA