SSC CGL Model Paper 2

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Question : 70 of 100

Marks: +1, -0

ΔXYZ is right angled at Y. If m∠Z = 60°. What is the length (in cm) of YZ, if

ZX = 9√3

cm?

$3√3$
${3√3}/2$
${9√3}/2$
$√3$

Solution:

In ΔXYZ

\cos 60° = \ZY/\ZX

⇒

1/2=\ZY/{9√3}

∴

\ZY={9√3}/2

cm

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