XYZ is a triangle and XW is perpendicular to YZ at = W. I...
XYZ is a triangle and XW is perpendicular to YZ at = W. If XZ = 5cm and WZ = 4cm, Calculate XY.
5\(\sqrt{3}\)cm
3\(\sqrt{5}\)cm
3\(\sqrt{3}\)cm
5cm
6cm
Correct answer is B
by Pythagoras theorem, XW = 3cm
Also by Pythagoras theorem, XY2 = 62 + 32
XY2 = 36 + 9 = 45
XY = \(\sqrt{45} = 3 \sqrt{3}\)
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