117 LearnersLast updated on May 26th, 2025
Square of 129
The product of multiplying an integer by itself is the square of a number. Square is used in programming, calculating areas, and so on. In the topic, we will discuss the square of 129.
What is the Square of 129
The square of a number is the product of the number itself. The square of 129 is 129 × 129. The square of a number always ends in 0, 1, 4, 5, 6, or 9. We write it in math as 129², where 129 is the base and 2 is the exponent.
The square of a positive and a negative number is always positive. For example, 5² = 25; -5² = 25.
The square of 129 is 129 × 129 = 16641. Square of 129 in exponential form: 129² Square of 129 in arithmetic form: 129 × 129
How to Calculate the Value of Square of 129
The square of a number is multiplying the number by itself. So let’s learn how to find the square of a number. These are the common methods used to find the square of a number.
- By Multiplication Method
- Using a Formula
- Using a Calculator
By the Multiplication method
In this method, we will multiply the number by itself to find the square. The product here is the square of the number. Let’s find the square of 129
Step 1: Identify the number. Here, the number is 129
Step 2: Multiplying the number by itself, we get, 129 × 129 = 16641. The square of 129 is 16641.
Using a Formula (a²)
In this method, the formula, a² is used to find the square of the number. Where a is the number.
Step 1: Understanding the equation Square of a number = a² a² = a × a
Step 2: Identifying the number and substituting the value in the equation. Here, ‘a’ is 129 So: 129² = 129 × 129 = 16641
By Using a Calculator
Using a calculator to find the square of a number is the easiest method. Let’s learn how to use a calculator to find the square of 129.
Step 1: Enter the number in the calculator Enter 129 in the calculator.
Step 2: Multiply the number by itself using the multiplication button (×) That is 129 × 129
Step 3: Press the equal to button to find the answer Here, the square of 129 is 16641.
Tips and Tricks for the Square of 129 Tips and tricks make it easy for students to understand and learn the square of a number. To master the square of a number, these tips and tricks will help students. The square of an even number is always an even number. For example, 6² = 36 The square of an odd number is always an odd number. For example, 5² = 25 The last digit of the square of a number is always 0, 1, 4, 5, 6, or 9. If the square root of a number is a fraction or a decimal, then the number is not a perfect square. For example, √1.44 = 1.2 The square root of a perfect square is always a whole number. For example, √144 = 12.
Common Mistakes to Avoid When Calculating the Square of 129
Mistakes are common among kids when doing math, especially when it is finding the square of a number. Let’s learn some common mistakes to master the squaring of a number.
Mistake 1
Calculation errors:
Calculation errors mostly happen when students skip the steps or else by swapping the digits. To avoid it, students should double-check the answer. They can double-check by finding the square root of the solution they found.
For example, the square of 25 is 625, and the square root of 625 is ±25.
Mistake 2
Errors will be using the formula.
The formula to find the square of the number is a². Instead, students may use 129² with (12+9)² or (120+9)². So students should check and use the correct formula and double-check the answers to avoid all the confusion.
Mistake 3
Confusing with square and square root.
Not understanding the concept of square and square root can lead to confusion in students. To avoid it, students should understand the concept that square and square root are inverse operations. The square of 5 is 25 and the square root of 25 is ±5.
Mistake 4
Errors in parentheses.
Ignoring the parentheses when finding the square of a number can lead to errors. So, students should understand parentheses. And do the operations in the correct order to avoid error.
Mistake 5
Not practicing regularly.
Regular practice is required to master the square of a number. So students should do regular practice to avoid errors.
Solved Examples on Square of 129
Problem 1
A square park has an area of 16641 m². What is the length of each side of the park?
The area of a square = a² So, the area of a square = 16641 m² So, the length = √16641 = 129. The length of each side = 129 m
Explanation
The length of a square park is 129 m.
Because the area is 16641 m², the length is √16641 = 129.
Problem 2
Sam is tiling a square floor that is 129 feet long on each side. If each tile costs 2 dollars, how much will it cost to tile the entire floor?
The length of the floor = 129 feet The cost to tile 1 square foot of floor = 2 dollars. To find the total cost to tile, we find the area of the floor, Area of the floor = area of the square = a² Here a = 129 Therefore, the area of the floor = 129² = 129 × 129 = 16641. The cost to tile the floor = 16641 × 2 = 33282. The total cost = 33282 dollars
Explanation
To find the cost to tile the floor, we multiply the area of the floor by the cost to tile per foot.
So, the total cost is 33282 dollars.
Problem 3
Find the area of a circle whose radius is 129 meters.
The area of the circle = 52281.48 m²
Explanation
The area of a circle = πr²
Here, r = 129
Therefore, the area of the circle = π × 129²
= 3.14 × 129 × 129
= 52281.48 m².
Problem 4
The area of a square is 16641 m². Find the perimeter of the square.
The perimeter of the square is 516 m.
Explanation
The area of the square = a²
Here, the area is 16641 m²
The length of the side is √16641 = 129
Perimeter of the square = 4a
Here, a = 129
Therefore, the perimeter = 4 × 129 = 516.
Problem 5
Find the square of 130.
The square of 130 is 16900
Explanation
The square of 130 is multiplying 130 by 130.
So, the square = 130 × 130 = 16900
FAQs on Square of 129
1.What is the square of 129?
2.What is the square root of 129?
3.Is 129 a prime number?
4.What are the first few multiples of 129?
5.What is the square of 128?
6.How does learning Algebra help students in India make better decisions in daily life?
7.How can cultural or local activities in India support learning Algebra topics such as Square of 129?
8.How do technology and digital tools in India support learning Algebra and Square of 129?
9.Does learning Algebra support future career opportunities for students in India?
Important Glossaries for Square 129.
- Perfect square: A number that is the square of an integer. For example, 144 is a perfect square because 12² = 144.
- Exponential form: Exponential form is the way of writing a number in the form of a power. For example, 9² where 9 is the base and 2 is the power.
- Square root: The square root is the inverse operation of the square. The square root of a number is a number whose square is the number itself.
- Multiples: Numbers you get when you multiply a number by integers. For example, the multiples of 5 are 5, 10, 15, 20, etc.
- Prime number: A number that has exactly two distinct positive divisors: 1 and itself. For example, 2, 3, 5, 7, etc.
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Jaskaran Singh Saluja
About the Author
Jaskaran Singh Saluja is a math wizard with nearly three years of experience as a math teacher. His expertise is in algebra, so he can make algebra classes interesting by turning tricky equations into simple puzzles.
Fun Fact
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