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What is the sixth triangular number?
Triangular numbers are numbers that are formed from the sum 1+2+3+4... The equation for the nth triangle number is (n2+n)/2 In this case, we want the sixth triangle number, so feed this into the equation: (62+6)/2 =(36+6)/2 =42/2 =21 Thus the sixth triangle number is 21.
What is the five consecutive numbers that add up to 115?
The numbers are 21, 22, 23, 24, and 25.
A triangle with sides of lengths 20 21 and 29 is a right triangle?
True
What are the first 5 triangular numbers?
Triangle numbers or triangular numbers are those numbers that can form an equilateral triangle when counting the objects. The first five triangular numbers are: 1, 3, 6, 10, 15.
What is a productogon?
it is a triangle with circles at the corners, and squares in the middle of the corners. The squares have numbers in them, and you have to put numbers in the circles. However, the numbers in the circles have to add up to the number of the square between them. Simple, right?
How many triangle numbers are there between 20 and 50?
Triangle numbers are generated by the formula ( T_n = \frac{n(n+1)}{2} ). The triangle numbers between 20 and 50 are ( T_6 = 21 ), ( T_7 = 28 ), ( T_8 = 36 ), ( T_9 = 45 ), and ( T_{10} = 55 ) (which exceeds 50). Therefore, there are four triangle numbers between 20 and 50: 21, 28, 36, and 45.
What arethe first 6 triangle numbers?
1, 3, 6, 10, 15, 21
What is the sixth triangular number?
Triangular numbers are numbers that are formed from the sum 1+2+3+4... The equation for the nth triangle number is (n2+n)/2 In this case, we want the sixth triangle number, so feed this into the equation: (62+6)/2 =(36+6)/2 =42/2 =21 Thus the sixth triangle number is 21.
Can 859 make a triangle?
No 859 is a number, to make a triangle you need to join up lines not numbers.
What is the first ten triangle numbers?
Depending upon the definition used, the first 10 natural numbers are either: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 or (first appearing in the 19th century): 0, 1, 2, 3, 4, 5, 6, 7, 8, 9
What six odd numbers add up to 100?
21, 21, 21, 21 , 15, 1
What is the nth term formula for the triangle numbers 1 3 6 10 15 21?
(n^2+n)/2
What two triangle numbers make thirty eight?
28 and 10 are both triangular numbers and add up to 38
What 4 numbers add up to 21?
25
How are the odd numbers arranged in Pascal's Triangle?
how are the odd numbers arranged Pascal's Triangle?
Is 21 a number in the Fibonacci sequence?
Yes, 21 is a number in the Fibonacci sequence. Numbers are usually found by adding up 2 numbers.
What is this triangle 78 42?
78 42 are, as far as I can make out, two numbers. They do not make a triangle.78 42 are, as far as I can make out, two numbers. They do not make a triangle.78 42 are, as far as I can make out, two numbers. They do not make a triangle.78 42 are, as far as I can make out, two numbers. They do not make a triangle.
