They are usually represented like this
commutative property of addition
a+b=b+a
associative property of additon
(a+b)+c=a+(b+c)
identity property of addition
a+0=a
so number sentatnces
lets say a=1,b=2,c=3
commutative property of addition
1+2=2+1
associative property of addition
(1+2)+3=1+(2+3)
identity property of addition
1+0=1
Perimeter = 68 Units
Answer:
AC = 30 Units
Step-by-step explanation:
The diagonals AC and BD of parallelogram ABCD are bisecting each other by making 90° angle, this tells us that it is a RHOMBUS.
All sides of rhombus are congruent.
AB = 17 units....(given)
Therefore,
Perimeter = 4*17 = 68 Units
Let diagonals AC and BD intersects at point O.
Therefore, by Pythagoras theorem:

D) No, because the y-intercepts are different
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