# Archive List for Secondary Math

## The volume and Surface Area of a Sphere: Calculations in Math Using Formulas

In mathematics, we calculate the volume and surface area of a sphere. We need to learn the formulas, and we can understand how to calculate the volume and surface area of a sphere by using the formulas. The formula that produces the volume and surface area of a sphere is a bit complicated. Also, to […]

## Volume and Surface Area of Pyramids and Cones: Formulas and Generatrix

In mathematical space figures, there is a problem in calculating the volume and surface area of a pyramid or cone. Unlike prisms and cylinders, how can we calculate the volume and surface area of an object with a sharp-pointed? Compared to prisms and cylinders, the calculation of pyramids and cones is more complicated. Especially when […]

## Surface Area of Prisms and Cylinders: Calculations and Formulas

In mathematics, we learn about space figures. We learn the area and volume of a three-dimensional figure, not a plane. One such field is the surface area of prisms and cylinders. How can we calculate the surface area of prisms and cylinders? When calculating the surface area of a prism or cylinder, the method of […]

## The Arc Length and the Sector Area: Circles and Arcs in Math

In mathematics, we sometimes calculate the length of the arc and the area of a sector. How do we calculate an arc length and a sector area? When calculating the arc length and the sector area, we must understand the properties of a circle. If we can calculate the length of the circumference and the […]

## Basics of Math Probability: Coins and Dice with a Tree Diagram

In mathematics, we study probability. Probability is so familiar in our lives and all statistics are based on probability. If you learn probability, you will be able to understand what is going on in the news. Also, experimental data in science is processed using probability. Whether or not it will rain in a weather forecast […]

## Basics of Quadratic Functions: How to Solve Problems and Draw Graphs

In mathematics, we learn about quadratic functions. A graph that has a square and is a quadratic function, and a graph has a curve. In mathematics involving graphs, we first learn direct proportions. The graphs that apply direct proportions are linear functions. Further advancement of linear functions is quadratic functions. The concept of linear and […]

An area that must be learned in mathematics is quadratic equations. Compared to linear equations, quadratic equations are more complicated to calculate. In quadratic equations, there are multiple ways to get the answer. Square roots, factorization, and quadratic formulas are the most common ways to solve quadratic equations. When solving a quadratic equation, we must […]

## Square Root Addition and Subtraction: How to Calculate Fractions and Square Roots

A field we learn about in mathematics is a square root. The square root allows us to represent numbers before they are squared. Square root calculations include addition and subtraction. For multiplication and division, we can just multiply the numbers in the root symbol. For addition and subtraction, on the other hand, the rule is […]

## Rationalizing the Denominator: How to Eliminate the Square Root

Fractions are frequently used in square root calculations. In the calculation of fractions, the denominator may contain the root symbol. In that case, if the root sign is still in the denominator, the answer is wrong. When calculating the square root, if the denominator contains the radical symbol, it should be removed. This process is […]

## Multiply and Divide Square Root: How to Do Prime Factorization

In the square root, we learn multiplication and division. In general, in mathematics, we learn addition and subtraction first. However, in the case of square roots, multiplication and division are easier. All you have to do is multiply the numbers in the root symbol. However, there are rules for multiplying square roots. And few people […]