Mindblown: a blog about philosophy.
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The Perimeter
Skills needed: Multiplication Addition Subtraction Polygons The perimeter is the length around the outside of a polygon or the path that surrounds an area. This is different from the surface area. The surface area is how much surface is inside the polygon or space. Let’s show the difference between surface area and perimeter by looking…
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Pythagorean Theorem
Skills needed: Multiplication Exponents Square root Algebra Angles The Pythagorean Theorem helps us to figure out the length of the sides of a right triangle. If a triangle has a right angle (also called a 90 degree angle) then the following formula holds true: a2 + b2 = c2 Note: Here2 is square not a…
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Triangles
Triangles are three sided polygons. One of the most interesting things about triangles is that if you sum up the three angles within any triangle, they will always total 180 degrees. This comes in handy when working on geometry problems. There are several types of triangles. Some triangles can be described by their sides, like…
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Quadrilaterals
Quadrilaterals are four sided polygons. Some quadrilaterals are probably quite familiar to you like squares and rectangles. A unique property of quadrilaterals is that the sum of all their interior angles always totals 360 degrees. Types of quadrilaterals: Rectangle : A rectangle is a quadrilateral where all four angles are 90 degrees. A square is…
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Polygons
A polygon is a flat figure that is made up of straight lines and is enclosed. A few notes on the definition of a polygon that hopefully will help you remember: Flat – this means it’s a plane figure or two-dimensional Straight lines – these are called segments in geometry Enclosed – all the lines…
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Circle Geometry
Skills needed: Multiplication Basic Geometry A circle is an important shape in geometry. There are circles all around us in the real world. We can learn a lot about the real world and how it works by understanding circles. First, what is the official definition of a circle? A circle is a shape that is…
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Examples
Example 1: Liza has 2 puppies. He bought 8 chewable bones to feed them both equally. How many bones will each puppy get? Solution: Number of Puppies = 2. Number of bones = 8. Number of bones for each puppy = 8/2 = 4. Therefore, each puppy will get 4 bones. Example 2: Eva’s mother…
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FAQs on Division
What is Division in Math? In maths, we have four basic arithmetic operations i.e., addition, subtraction, multiplication, and division. Amongst these four operations, the division is one of the major operations we use in our daily activities. It is the process of splitting a large group into equal smaller groups. For example, divide 25 by…
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Special Cases
Special Cases : Given below are three special cases of division. Any number is divided by 1(the quotient equals the dividend), gives the answer the same as the dividend. For examples: 10 ÷ 1 = 10 A number cannot be divided by 0 and the result is thus undefined. Example: 60 ÷ 0 = undefined…
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Division and Remainders
Division and Remainders : Sometimes when dividing there is something left over. It is called the remainder. Example: There are 7 bones to share with 2 pups. But 7 cannot be divided exactly into 2 groups,so each pup gets 3 bones,and there is 1 left over: We say: “7 divided by 2 equals 3 with a remainder of 1“ And we write: 7 ÷…
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