Question

what is the measure of the angle of rotation of an octagon?○ 30○ 45○ 90○ 60question 81 ptshow many reflectional symmetries does this figure have?f○ 2○ 0○ 3

Explanation:

Step1: Calculate rotation angle

The minimum rotation angle for a regular n-sided polygon is $\frac{360^\circ}{n}$. For an octagon, $n=8$, so $\frac{360^\circ}{8} = 45^\circ$.

Step2: Analyze reflectional symmetry

The letter "F" cannot be reflected over any vertical, horizontal, or diagonal line and map onto itself, so it has 0 reflectional symmetries.

Answer:

1. B. 45
2. B. 0