5 Write The Generalised Statement For The Number Of Sides And Find The 10th And The 15th Term In Each. (i)
Exploring the Generalized Statement for the Number of Sides and Finding the 10th and 15th Term in Each
In mathematics, a generalized statement is a statement that can be applied to a wide range of situations or problems. In this article, we will explore the generalized statement for the number of sides and find the 10th and 15th term in each. We will use the concept of arithmetic sequences to derive the formula for the nth term of a polygon with a given number of sides.
Understanding the Generalized Statement
A polygon is a two-dimensional shape with a fixed number of sides. The number of sides of a polygon is denoted by the variable 'n'. The generalized statement for the number of sides can be written as:
-
The nth term of a polygon with 'n' sides is given by the formula:
- Tn = 2n - 2
where Tn is the nth term of the polygon.
Derivation of the Formula
To derive the formula for the nth term of a polygon with 'n' sides, we can use the concept of arithmetic sequences. An arithmetic sequence is a sequence of numbers in which each term after the first is obtained by adding a fixed constant to the previous term. In this case, the fixed constant is 2.
Let's consider a polygon with 'n' sides. The first term of the polygon is 2, and each subsequent term is obtained by adding 2 to the previous term. Therefore, the nth term of the polygon can be written as:
-
Tn = 2 + (n - 1) * 2
where Tn is the nth term of the polygon.
Simplifying the equation, we get:
-
Tn = 2n - 2
This is the formula for the nth term of a polygon with 'n' sides.
Finding the 10th and 15th Term in Each
Now that we have derived the formula for the nth term of a polygon with 'n' sides, we can use it to find the 10th and 15th term in each.
-
10th term:
Substituting n = 10 into the formula, we get:
- T10 = 2(10) - 2
- T10 = 20 - 2
- T10 = 18
Therefore, the 10th term of a polygon with 10 sides is 18.
-
15th term:
Substituting n = 15 into the formula, we get:
- T15 = 2(15) - 2
- T15 = 30 - 2
- T15 = 28
Therefore, the 15th term of a polygon with 15 sides is 28.
In this article, we explored the generalized statement for the number of sides and found the 10th and 15th term in each. We used the concept of arithmetic sequences to derive the formula for the nth term of a polygon with a given number of sides. The formula for the nth term of a polygon with 'n' sides is given by:
-
Tn = 2n - 2
We used this formula to find the 10th and 15th term in each, and we obtained the results:
-
10th term: 18
-
15th term: 28
We hope that this article has provided a clear understanding of the generalized statement for the number of sides and the concept of arithmetic sequences.
Frequently Asked Questions (FAQs) on the Generalized Statement for the Number of Sides
In our previous article, we explored the generalized statement for the number of sides and found the 10th and 15th term in each. In this article, we will answer some frequently asked questions (FAQs) related to the generalized statement for the number of sides.
Q: What is the generalized statement for the number of sides?
A: The generalized statement for the number of sides is a statement that can be applied to a wide range of situations or problems. It is given by the formula:
-
Tn = 2n - 2
where Tn is the nth term of the polygon.
Q: How is the formula for the nth term of a polygon derived?
A: The formula for the nth term of a polygon with 'n' sides is derived using the concept of arithmetic sequences. An arithmetic sequence is a sequence of numbers in which each term after the first is obtained by adding a fixed constant to the previous term. In this case, the fixed constant is 2.
Let's consider a polygon with 'n' sides. The first term of the polygon is 2, and each subsequent term is obtained by adding 2 to the previous term. Therefore, the nth term of the polygon can be written as:
-
Tn = 2 + (n - 1) * 2
where Tn is the nth term of the polygon.
Simplifying the equation, we get:
-
Tn = 2n - 2
This is the formula for the nth term of a polygon with 'n' sides.
Q: How do I find the 10th and 15th term in each using the formula?
A: To find the 10th and 15th term in each using the formula, you can substitute the values of n into the formula.
-
10th term:
Substituting n = 10 into the formula, we get:
- T10 = 2(10) - 2
- T10 = 20 - 2
- T10 = 18
Therefore, the 10th term of a polygon with 10 sides is 18.
-
15th term:
Substituting n = 15 into the formula, we get:
- T15 = 2(15) - 2
- T15 = 30 - 2
- T15 = 28
Therefore, the 15th term of a polygon with 15 sides is 28.
Q: What is the significance of the generalized statement for the number of sides?
A: The generalized statement for the number of sides is significant because it provides a formula for finding the nth term of a polygon with a given number of sides. This formula can be used to find the number of sides of a polygon given its nth term.
Q: Can the generalized statement for the number of sides be applied to other shapes?
A: Yes, the generalized statement for the number of sides can be applied to other shapes, such as polyhedra. However, the formula for the nth term of a polyhedron with 'n' sides is different from the formula for the nth term of a polygon with 'n' sides.
In this article, we answered some frequently asked questions (FAQs) related to the generalized statement for the number of sides. We hope that this article has provided a clear understanding of the generalized statement for the number of sides and its significance.
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We hope that this article has been helpful in understanding the generalized statement for the number of sides. If you have any further questions or need additional clarification, please don't hesitate to ask.