In this case the answer is very simple. .
Step 01:
Data
side a = 8m
side b = 15m
c = hypotenuse = ?
Step 02:
Pythagoras Theorem Formula
Hypotenuse² = Perpendicular² + Base²
c² = a² + b²
c ² = (8m)² + (15m)²
c ² = 64m² + 225m²
c ² = 289m²
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