The length of side SU is 12.73 units
How to determine the length su?
The triangle is an isosceles right triangle.
This means that:
SU^2 = ST^2 + TU^2 ---- Pythagoras theorem
Where
ST = TU = 9
So, we have:
SU^2 = 9^2 + 9^2
Evaluate
SU^2 = 162
Take the square root of both sides
SU = 12.73
Hence, the length of side SU is 12.73
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