Answer:
a. it has rotational symmetry with an angle of rotation of 90°
Step-by-step explanation:
sqrt(3) /3
1 / sqrt(3)
Multiply the top and bottom by sqrt(3)
1/ sqrt(3) * sqrt(3)/ sqrt(3)
sqrt(3) / sqrt(3)*sqrt(3)
my hand writing is sloppy hope it helps tho
1 hour and 25 minutes