The value of angle T in the triangle is 8.8°
To find the measure of angle of T we need to use sine rule
sine rule mathematically states that
a/sinA = b/sinB
Sine rule is used to find missing angle or side of a triangl.
Using sine rule
t/sinT = v/sinV
450/sinT = 860/sin17
450sin17 = 860sinT
131.57 = 860sinT
sinT = 131.57/860
sinT = 0.153
T = sin⁻¹ 0.153
T = 8.8°
Therefore, the measure of angle T is 8.8°