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jarptica [38.1K]

2 years ago

7

Find the area of the triangle. PLEASE HELP ASPA

2 answers:

mario62 [17]2 years ago

4 0

1/2abSinC
1/2*8*5*sin(140)=12.9cm
* means multiply

ZanzabumX [31]2 years ago

3 0

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

$A_{ABC}$ ≈ 12.856 ≈ 12.9 cm²

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