Question

XYZ is a triangle, right angle at Y. If XY= 5 cm and YZ = 12 cm, than find the length of XZ.​

Answer 1

Answer:

13

Step-by-step explanation:

By Pythagoras theorem

5*5 + 12*12=169

√169 = 13

Answer 2

Let XY = x

YZ = y

XZ = z

Then by pythagoras theorem,

${z}^{2} = {x}^{2} + {y}^{2}$

${z}^{2} = {5}^{2} + {12}^{2}$

${z}^{2} = 25 + 144$

${z}^{2} = 169$

$z = \sqrt{169}$

$z = 13 \: cm$

Therefore length of XZ is 13 cm

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