An interior angle of a regular polygon has a measure of 135°. what type of polygon is it? hexagon octagon nonagon decagon

its a octagon. e2020 approved, you can trust me

 The correct option is (B) octagon.

Step-by-step explanation:  Given that an interior angle of a regular polygon has a measure of 135°.

We are to select the type of the polygon from the given options.

We know that, if n represents the number of sides of a regular polygon and α be its exterior angle, then

Given that,

an interior angle of the regular polygon is 135°.

So, the measure of an exterior angle will be

Therefore, the number of sides of the regular polygon is

So, there are 8 sides of the polygon and hence it is an OCTAGON.

Thus, (B) is the correct option.

x² + 11x + 18 < 0  

[-11 ± sqrt(121 - 72)]/2 = (-11 ± 7)/2  

solution: (-9, -2)

step-by-step explanation:

an = 22 + (n-1) *6

110 seats

step-by-step explanation:

an=a1+(n-1)(d)

a1 = 22   this is the first item in the sequence

d =6   this is how the sequence goes up

a)   an = 22 + (n-1) *6

b) a12 = 22 + (12-1) *6

    a12 = 22+11*6

  a12 = 22 +88

  a12 = 110