Question

C=40squared+35squared minus 2 times40 times 35cos(50)?

the answer to this is then square rooted but i cant figure it out

Answer 1

Explanation:

c² = 40² + 35² − 2(40)(35)cos(50)

c² = 1600 + 1225 − 2800 cos(50)

c² = 1025.195

c = 32.019