Find the value of x and perimeter of the given regular polygons. (A polygon is said to be regular if each of its s the same length.) (a) 8-2x 3x-7 (b) 4(x - 1) 6x-8 (c) 4x-1 x + 11
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Find the value of x and perimeter of the given regular polygons. (A polygon is said to be regular if each of its s the same length.) (a) 8-2x 3x-7 (b) 4(x - 1) 6x-8 (c) 4x-1 x + 11
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Correct option is A)
Number of sides of regular hexagon =6
Sum of all interior angles =(n−2)×180
o
=(6−2)×180
o
=4×180
o
=720
o
Sum of all interior angle =x+x−5+x−5+2x−5+2x−5+2x+20
⇒ 720
o
=9x
⇒ x=
9
720
o
⇒ x=80
o
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Answer:
correct answer is ( a)
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