The length of the segment t in the triangle is 21 cm
How to determine the value of t in the triangle
From the question, we have the following parameters that can be used in our computation:
The triangle
Where, we have
θ = 72° and s = 20 cm
The value of t in the triangle can be calculated using the following sine ratio
sinθ = s/t
Substitute the known values into the equation
sin(72) = 20/t
t = 20/sin(72)
Evaluate
t = 21 cm
Hence, the value of t in the triangle is 21 cm