Math: Which is True? (Part 2)

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Can you name the statement, by typing '1' or '2,' in each pair that is true?

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Statement # 1AnswerStatement # 2
To square a two-digit number with N in the tens place and 5 in the ones place, the answer is always (N2+N) as the first two digits and 25 as the last two.To square a two-digit number with N in the tens place and 5 in the ones place, the answer is always (N2+1) as the first two digits and 25 as the last two.
A parabola is always mirror-symmetrical.It is possible for a parabola to be asymmetrical.
123456789+987654321=1111111110123456789+987654321=111111110
1 is a prime number.1 is not a prime number.
On a radian-based graph, sin(0)=sin(π).On a radian-based graph, sin(0)≠sin(π).
'e' is a rational number.'e' is an irrational number.
57 = 7557 ≠ 75
13+23+ ... +n3 = (1+2+ ... + n)213+23+ ... +n3 ≠ (1+2+ ... + n)2
The surface area of a cone is equal to (1/3)π(radius)2x(height).The volume of a cone is equal to (1/3)π(radius)2x(height).
For a three-digit number where all three digits are the same, the number divided by the sum of the digits in the number is equal to 27.For a three-digit number where all three digits are the same, the number divided by the sum of the digits in the number is equal to 37.

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