Hello there,
the answer you are looking for will be
a) it has reflectional symmetry with 16 lines of symmetry
The answer is A.
if you need proof go to google and ask "is 2 irrational?"
In order to calculate this, you need to solve :

x 100 %
= 0.2 / 9.87 x 100 %
= 2.02 %
Hope this helps
Answer:
Step-by-step explanation:
9
Answer:
Step-by-step explanation:
You used Pythagorean theroem which is correct as this does form a right triangle however 50 is the hypotenuse as the ladder is propped up against the wall. 30 would then be the height of the triangle and the base is unknown so...

50 squared minus thirty squared gives 1600 so:

Therefore x is the square root of 1600 which is 40