NASA
NASA | Wall*E Learns About Proportions
Through a partnership of intergalactic proportions, NASA and Disney/PIxar have teamed up to bring Wall*E into the classroom! In this video, students learn about how to find the size of the moon using everyday objects with a little help...
Brian McLogan
What is cross multiplication
👉 Learn how to solve proportions. Two ratios are said to be proportional when the two ratios are equal. Thus, proportion problems are problems involving the equality of two ratios. When given a proportion problem with an unknown, we...
Brian McLogan
Using the proportion of parallel lines to determine the missing length of a triangle
👉 Learn how to solve for the unknown in a triangle divided internally such that the division is parallel to one of the sides of the triangle. The triangle proportionality theorem states that if a line is parallel to one side of a...
Brian McLogan
What are the law of sines and when will we apply them
👉 Learn how to solve for the length of the sides and the measures of the angles of a triangle using the law of sines. The law of sines is used in determining the length of the opposite side to a known angle measure or the measure of the...
Brian McLogan
What is a geometric mean
Learn about the geometric mean of numbers. The geometric mean of n numbers is the nth root of the product of the numbers. To find the geometric mean of n numbers, we first multiply the numbers and then take the nth root of the product.
Curated Video
GCSE Secondary Maths Age 13-17 - Ratio, Proportion & Rates of Change: Inverse Proportionality - Explained
SchoolOnline's Secondary Maths videos are brilliant, bite-size tutorial videos delivered by examiners. Ideal for ages 13-17, they cover every key topic and sub topic covered in GCSE Maths in clear and easy to follow steps. This video...
Healthcare Triage
Do People with Certain Blood Types Have Worse Covid-19 Symptoms?
There's been a lot of discussion about differing Covid experiences and symptoms among people with different blood types. Does your blood type determine how ill you become if you develop Covid-19? We're looking at some preprint studies to...
Brian McLogan
Showing two triangles are similar using SAS
👉 Learn how to determine whether two triangles are similar given the coordinate points of the vertices of the triangle. Two triangles are said to be equal when the corresponding angles of the triangles are congruent (equal) or when the...
Brian McLogan
How to use the triangle bisector theorem to solve your missing length
👉 Learn how to solve with similar triangles. Two triangles are said to be similar if the corresponding angles are congruent (equal). Note that two triangles are similar does not imply that the length of the sides are equal but the sides...
Curated Video
Similar Figures
In this video lesson, we will learn the definition of similar figures. Similar figures are figures that are the same shape but different sizes. Similar figures have corresponding sides that are proportional and corresponding angles that...
Brian McLogan
Learning how to solve a proportion with cross products
👉 Learn how to solve proportions. Two ratios are said to be proportional when the two ratios are equal. Thus, proportion problems are problems involving the equality of two ratios. When given a proportion problem with an unknown, we...
Brian McLogan
How to cross multiply to solve a proportion
👉 Learn how to solve proportions. Two ratios are said to be proportional when the two ratios are equal. Thus, proportion problems are problems involving the equality of two ratios. When given a proportion problem with an unknown, we...
Brian McLogan
Learn how to apply the cross product to solve the proportion ex 10, (x - 5)/4 = 3/2
👉 Learn how to solve proportions. Two ratios are said to be proportional when the two ratios are equal. Thus, proportion problems are problems involving the equality of two ratios. When given a proportion problem with an unknown, we...
Brian McLogan
Using Similarity and proportions to find the missing values
👉 Learn how to solve with similar triangles. Two triangles are said to be similar if the corresponding angles are congruent (equal). Note that two triangles are similar does not imply that the length of the sides are equal but the sides...
Brian McLogan
Using similar triangles to find the measure of x
👉 Learn how to solve for the unknown in a triangle divided internally such that the division is parallel to one of the sides of the triangle. The triangle proportionality theorem states that if a line is parallel to one side of a...
Brian McLogan
Applying the law of sines when no triangle exists
👉 Learn how to determine if a given SSA triangle has 1, 2 or no possible triangles. Given two adjacent side lengths and an angle opposite one of them (SSA or ASS), then there are 3 possible cases: there can be 1 solution, 2 solutions and...
Brian McLogan
Summary for solving rational equations
👉 Learn about solving rational equations. A rational expression is an expression in the form of a fraction where the numerator and/or the denominator are/is an algebraic expression. There are many ways to solve rational equations, one of...
Brian McLogan
Solving a literal equation that is a proportion ex 13, x/a = y/b; solve for x
👉 Learn how to solve literal equations involving formulas. A literal equation is an equation where the unknown values are represented by variables. To solve a literal equation means to make one of the variables the subject of the...
Brian McLogan
How do you determine two triangles are similar using angle angle aa
👉 Learn how to solve with similar triangles. Two triangles are said to be similar if the corresponding angles are congruent (equal). Note that two triangles are similar does not imply that the length of the sides are equal but the sides...
KnowMo
Introduction to Proportion and Best Buys
This video serves as an introduction to proportion in mathematics, covering the two types of proportion, direct and inverse, and providing real-life examples for each. The video discusses how to find the value of one item in direct...
Curated Video
Hypothesis Testing in the Binomial Distribution
This lecture video explains the test for proportion in the binomial distribution, the method of hypothesis testing, and how to use statistical tables to find the critical region when conducting a hypothesis test. The presenter uses...
Brian McLogan
Solve y using cross multiplication - literal equation
👉 Learn how to solve literal equations. A literal equation is an equation where the unknown values are represented by variables. To solve a literal equation means to make one of the variables the subject of the formula. When the literal...
Brian McLogan
Determine the remaining parts of a triangle using the law of sines
👉 Learn how to solve for the length of the sides and the measures of the angles of a triangle using the law of sines. The law of sines is used in determining the length of the opposite side to a known angle measure or the measure of the...
Brian McLogan
How to use the law of sines when given two angles and one side
👉 Learn how to solve for the length of the sides and the measures of the angles of a triangle using the law of sines. The law of sines is used in determining the length of the opposite side to a known angle measure or the measure of the...