Answer:
It is an octagon if and only if it has eight sides.
Step-by-step explanation:
Answer:
A. Meet at a right angle.
Step-by-step explanation:
We should know the properties of kite.
(1) The diagonals of a kite meet at a right angle.
(2) Kites have exactly one pair of opposite angles that are congruent.
Therefore, the answer is A. Meet at a right angle.
Thank you.
Answer:
Option B. 
Step-by-step explanation:
we know that
A non-terminating, non-repeating decimal is a decimal number that continues endlessly, with no group of digits repeating endlessly
example
the number 
In this problem
the number is a non-terminating, non-repeating decimal
This means that everybody answered the same number of items. This means that every data value is equal to the mean. This outcome permits us to say that the sample standard deviation of a data set is zero if and only if all of its values are same or identical.
Answer:D 120 degrees, F 60 degrees
Step-by-step explanation:
it is a parallelogram which means the 2 angles add up to 180 degrees. 5x+2x+12=180. Then solve, 7x=168, x=24. Then Substitute back into the angles. E is 5*24 which is 120. F is same as D which is 2x+12=60. Hope this helped
