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Earn +20 ptsQ: What number under 50 is a square and triangular number?
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What is the xth triangular number?
The formula for the nth triangular number is n(n+1)/2. Therefore, the fourth triangular number is equal to 4 x (4+1) / 2 = (4 x 5) / 2 = 10. The fiftieth triangular number is equal to 50 x (50+1) / 2 = (50 x 51) / 2 = 1275.
Is 50 square?
no 50 is not a square number
What is the fiftieth triangle number?
The 50th triangular number is (50)(51)/2=1275
How do you work out the 50th triangular number?
Oh, dude, it's like super simple. The 50th triangular number is just the sum of all the numbers from 1 to 50. So, you can use the formula n(n+1)/2, where n is 50 in this case. Plug it in, do the math, and boom, you've got your answer. It's like math, but with a little extra pizzazz.
What is the product of square number 2500?
2500 is a perfect square number, it can be written as 50*50.
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