Answer:
53°
Step-by-step explanation:
17² = 18² + 20² - 2(18)(20) cos Q
289 = 324 + 400 - 720 cos Q
289 = 724 - 720 cos Q
-435 = -720 cos Q
0.6042 = cos Q
![cos^{-1} (0.6042) = Q](https://tex.z-dn.net/?f=cos%5E%7B-1%7D%20%280.6042%29%20%3D%20Q)
Q = 52.83
Answer:
6.4
Step-by-step explanation:
16 ÷ 2/5 = 6.4!
that's it
Answer:
AC is the largest side
Step-by-step explanation:
The longest side of a triangle is opposite the largest angle, and the shortest side is opposite the smallest angle.