Respuesta :

Answer:

[tex] t = 17.3 [/tex]

Step-by-step explanation:

Given:

∆TUV,

m < T = 87°

VT = u = 11

TU = v = 14

VU = t = ?

Use the Law of Cosines to find t as shown below:

[tex] t^2 = u^2 + v^2 - 2uv*cos(T) [/tex]

[tex] t^2 = 11^2 + 14^2 - 2*11*14*cos(87) [/tex]

[tex] t^2 = 121 + 196 - 308*0.0523 [/tex]

[tex] t^2 = 317 - 16.1084 [/tex]

[tex] t^2 = 300.89 [/tex]

[tex] t = 17.3 [/tex] (rounded to the nearest tenth)