Answer:
A
Step-by-step explanation: The answer is A
The best answer would be D
Because Rotational symmetry is a symmetric shape that can be rotated but appear the same.
Find a common demoninator for example 6 because all of the denominators can go into 6 then you should find your answer quite easily when u add the fractions because all you have to do is add the numerator together to get to 2/3 (4/6)
They are ratios of two sides of a right triangle and a related angle. Trigonometric functions are typically used to calculate unknown lengths or angles in a right triangle.