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Find the area of the triangle. PLEASE HELP ASPA
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5 votes
Find the area of the triangle.
PLEASE HELP ASPA

Find the area of the triangle. PLEASE HELP ASPA-example-1
User Elcool
by
4.4k points

2 Answers

3 votes

Answer:

(B). 12.9 cm²

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

User Damiano Miazzi
by
4.0k points
1 vote
1/2abSinC
1/2*8*5*sin(140)=12.9cm
* means multiply
User F Yaqoob
by
4.3k points
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