The only square number that is also a triangular number is 1. This is because square numbers are of the form n^2, while triangular numbers are of the form (n*(n+1))/2. When setting these two equations equal to each other and solving for n, we find that n=1 is the only integer solution. Therefore, 1 is the only number that is both a square number and a triangular number.
Yes. 1 is both square and triangular.
1225
7 of the first 15 triangular numbers (462/3 percent) are even.1, 3, 6, 10, 15, 21, 28, 36, 45, 55, 66, 78, 91, 105, 120 ...From this fragment of the series, it sure begins to look as if every second pairof triangular numbers are both even, and that 50% of all of them are.
There are many possible answers but the most likely one, for your level, is a triangular prism.
if you don't count 0 or 1, I believe it's 36 and 1225.
The only square number that is also a triangular number is 1. This is because square numbers are of the form n^2, while triangular numbers are of the form (n*(n+1))/2. When setting these two equations equal to each other and solving for n, we find that n=1 is the only integer solution. Therefore, 1 is the only number that is both a square number and a triangular number.
Yes. 1 is both square and triangular.
they are both types of pyramidsThey're both triangular pyramids, and all of them have a base, multiple faces, and at one end the faces come to a point.* * * * *They are NOT both triangular pyramids!
1 and 36
1225
Yes
7 of the first 15 triangular numbers (462/3 percent) are even.1, 3, 6, 10, 15, 21, 28, 36, 45, 55, 66, 78, 91, 105, 120 ...From this fragment of the series, it sure begins to look as if every second pairof triangular numbers are both even, and that 50% of all of them are.
There are many possible answers but the most likely one, for your level, is a triangular prism.
both have lateral face shapes that are riangles
Both have 4 vertices, though he vertices of a square are 2 dimensional vertices while those of a triangular pyramid are 3-d.
28 and 10 are both triangular numbers and add up to 38