# SOLUTION: A triangle has sides measuring 5, 12, and 15 units. Find all the angles of the triangle to the nearest tenth of a degree. I beleive it's a SSS Triangle b^2=a^2=+C^2-2ac COS B

Algebra ->  Algebra  -> Triangles -> SOLUTION: A triangle has sides measuring 5, 12, and 15 units. Find all the angles of the triangle to the nearest tenth of a degree. I beleive it's a SSS Triangle b^2=a^2=+C^2-2ac COS B       Log On

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 Click here to see ALL problems on Triangles Question 624227: A triangle has sides measuring 5, 12, and 15 units. Find all the angles of the triangle to the nearest tenth of a degree. I beleive it's a SSS Triangle b^2=a^2=+C^2-2ac COS B Cos B=12^2+15^2-5^2/2(12)(15) =144+225-25/360 =344/360 B=17.14 Sin A=12Sin17.14/5=0.7056 A=45 C117.9Answer by Alan3354(30993)   (Show Source): You can put this solution on YOUR website!A triangle has sides measuring 5, 12, and 15 units. Find all the angles of the triangle to the nearest tenth of a degree. ---------------- It is SSS. ====================== 17.1 degs 45.0 degs 117.8 degs according to my Excel sheet