Symbiosis National Aptitude Test SNAP 2013 Paper

Question : 30 of 150

Marks: +1, -0

If ABCD is a square and BCE is an equilateral triangle, what is the measure of the angle DEC ?

Solution:

In ∠DEC, ∠DCE = 90° + 60° = 150°
∠CDE = ∠DEC =

{180-150}/2

= 15°

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