Real math help.
How Do You Find the Height of a Cylinder if You Know the Volume?
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Want to find the height of a cylinder? Already know the volume of the cylinder and radius of the base? Then, you can use the formula for the volume of a cylinder to find the height! Check out this tutorial to see how!
Background Tutorials
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Write and evaluate numerical expressions involving whole-number exponents.
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How Do You Square a Number?
Want to square a number? Just take the number and multiply it by itself! If you square an integer, you get a perfect square! Check out squaring in this tutorial!
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Evaluate expressions at specific values of their variables. Include expressions that arise from formulas used in real-world problems. Perform arithmetic operations, including those involving whole-number exponents, in the conventional order when there are no parentheses to specify a particular order (Order of Operations).
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How Do You Evaluate an Algebraic Expression?
Plugging variables into an expression is essential for solving many algebra problems. See how to plug in variable values by watching this tutorial.
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What is a Variable?
You can't do algebra without working with variables, but variables can be confusing. If you've ever wondered what variables are, then this tutorial is for you!
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Know the formulas for the area and circumference of a circle and use them to solve problems; give an informal derivation of the relationship between the circumference and area of a circle.
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What is a Circle?
Circles are a fundamental part of math! In this tutorial, you'll be introduced to circles and see the different parts of a circle such as the diameter, radius, and chord. Check out this tutorial to learn about circles!
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Know that numbers that are not rational are called irrational. Understand informally that every number has a decimal expansion; for rational numbers show that the decimal expansion repeats eventually, and convert a decimal expansion which repeats eventually into a rational number.
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What's an Irrational Number?
Is an irrational number just a way to describe a number that's lost its mind? Not really. :) An irrational number is simply a number that cannot be written as a fraction. Check out the definition, learn an important property of these special numbers, and take a look at some examples of irrational numbers.
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Further Exploration
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Know the formulas for the volumes of cones, cylinders, and spheres and use them to solve real-world and mathematical problems.
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How Do You Find the Volume of a Cylinder?
The volume of a cylinder is the amount of space that will fit inside it. You can use the formula for the volume of a cylinder to find that amount! In this tutorial, see how to use that formula and the radius and height of the cylinder to find the volume. Check it out!
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Use units as a way to understand problems and to guide the solution of multi-step problems; choose and interpret units consistently in formulas; choose and interpret the scale and the origin in graphs and data displays.
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How Do You Find the Volume of a Triangular Pyramid?
If you want to find the volume of a triangular pyramid, you'll need to know the length and height of the base and the height of the pyramid. Once you have those values, you can plug them into the formula for the volume of a triangular pyramid and simplify. Check out this tutorial to see this process!
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