Find the area of the triangle.
PLEASE HELP ASPA
2 answers:
1/2abSinC
1/2*8*5*sin(140)=12.9cm
* means multiply
Answer:
<em>(B). 12.9 cm²</em>
Step-by-step explanation:
a = 8 cm , b = 5 cm , c ≈ 12.259 cm
P = 25.259 , s = P/2 ≈ 12.63
≈ 12.856 ≈ 12.9 cm²
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