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Earn +20 ptsQ: Why are the numbers called triangle number?
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What is the triangle number out of all the prime numbers?
3
Why is 10 called a triangular number?
A triangular number or triangle number counts the objects that can form an equilateral triangle. 10 objects can be formed into an equilateral triangle.
What is the sum of the numbers from 1 to 1000?
These numbers added together make the 1000th triangle number, which is 500,500.
What is the 1000 triangular number?
Triangle numbers are of the form (x^2+x)/2 So the 1000th triangle number is (1000^2+1000)/2 Which is 500500
Why are the numbers called square numbers?
When a number is multiplied by itself it is called the square of the number. It is called a square number as the number of dots or points represented by the number can be arranged in a square.
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