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35 votes
35 votes
Please solve (18 points)

Please solve (18 points)-example-1
User Erik Cupal
by
2.5k points

1 Answer

9 votes
9 votes

Answer:

Ꮎ = 72.123°

Explanation:

AC² = BC²+ AB² - 2BC AB x cos (ABC) 4.52 4.12 +3.52 - 2 x 4.1 x 3.5 x cos (8) =

User Satyajit Das
by
3.1k points