CTET 2 Math and Science Feb 2015 Paper

Question : 39 of 120

Marks: +1, -0

The sulm of all interior angles of a regular convex polygon is 1080°. The measure of each of its interior angles is

Solution:

The sum of all interior = 1080°

⇒(n-2)×180^{∘}=1080^{∘}

⇒n-2=6

∴n=6+2=8

Interior angles

=1080/8

=135°

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