Lumos Video Store
This page provides a list of educational videos related to Solving Area Problems. You can also use this page to find sample questions, apps, worksheets, lessons , infographics and presentations related to Solving Area Problems.
Comparing areas of plots of land | Measurement | Pre-Algebra
By Khan Academy
Find area of two rectangles to solve a word problem.
Area of a Triangle - MathHelp.com - Geometry Help
By yourteachermathhelp
Students learn the formula for the area of a triangle and are asked to solve problems using this formula. Note that right triangle formulas and trigonometry are used extensively in the problems in this lesson.
Area and perimeter problems - rectangular shapes - 3rd/4th grade math
By Math Mammoth
After reminding everyone about what is AREA and what is PERIMETER, we solve several problems involving both area and perimeter of rectangles or rectangular shapes.
[3.MD.7b-1.0] Multiply to find Area - Common Core Standard
By Freckle education
Multiply side lengths to find areas of rectangles with whole-number side lengths in the context of solving real world and mathematical problems
Area of a Trapezoid - YourTeacher.com - Geometry Help
By yourteachermathhelp
For a complete lesson on area of a trapezoid go to http://www.yourteacher.com - 1000+ online math lessons featuring a personal math teacher inside every lesson! In this lesson students learn the formula for the area of a trapezoid and are asked to solve problems using this formula. Note that right triangle formulas and trigonometry are used extensively in the problems in this lesson.
Division - The Area Model Word Problems with Single Digit Divisors (4-NBT-B-6)
By Worksheets and Walkthroughs
This video walkthrough lesson shows you how to use the area model to solve division problems with single digit divisors. Please visit www.worksheetsandwalkthroughs.com to print out the worksheet for this video and others. Also check out our
Area Between Two Curves
By The Organic Chemistry Tutor
This calculus video tutorial provides a basic introduction in finding the area between two curves with respect to y and with respect to x. It explains how to set up the definite integral to calculate the area of the shaded region bounded by the two curves. In order to find the points of intersection, you need to set the two curves equal to each other and solve for x or y. You need to be familiar with some basic integration techniques for this lesson. This video contains plenty of examples and practice problems.
Area of inscribed equilateral triangle (some basic trig used) | Circles | Geometry | Khan Academy
By Khan Academy
This video will give you a good feel for what inscribed figures are like. It uses some trigonometry to figure out what the area of an equilateral triangle inscribed in a circle is, given the circle's radius. NOTE: We don't actually need trigonometry to solve this problem. Notice that we can view the equilateral triangle as six identical 30-60-90 triangles, the hypotenuses of which are radii of the circle, then use the 30-60-90 triangle side length ratios to figure out the rest of what we need to know to solve the problem.
Area of inscribed equilateral triangle (some basic trig used) | Circles | Geometry | Khan Academy
By Khan Academy
This video will give you a good feel for what inscribed figures are like. It uses some trigonometry to figure out what the area of an equilateral triangle inscribed in a circle is, given the circle's radius. NOTE: We don't actually need trigonometry to solve this problem. Notice that we can view the equilateral triangle as six identical 30-60-90 triangles, the hypotenuses of which are radii of the circle, then use the 30-60-90 triangle side length ratios to figure out the rest of what we need to know to solve the problem.
Inverse Variation | MathHelp.com
By MathHelp.com
This lesson covers the surface area of a pyramid. Students learn the definition of a prism, as well as the following vocabulary words related to prisms: base, base edge, lateral edge, lateral face, and altitude (height). Students also learn the formulas for the lateral area, total area, and volume of a right prism, and are asked to solve problems using these formulas. Note that the prisms in this lesson are primarily rectangular prisms -- prisms whose bases are rectangles.
Grade 5 Math Lessons and Worksheets
By Lumos Learning
It is important for you as a parent to know what your child should be learning in grade 5 math. This is for you to be able to monitor your child’s progress and see if they are having any difficulty with the subject. If you supervise their learning process, then you can determine whether your child needs more help or tutoring. Having a clear idea of the math concepts that your child should be learning also gives you a chance to reinforce their knowledge. Familiarize yourself with the lessons that he or she is learning about so that you can help them anytime they need your assistance. The major topics that are included in grade 5 math are math strands involving whole numbers, decimals, fractions, measurement, plane figures, area and perimeter, ratio, scale, percent, average, graphs, rectangular prisms and cubes, volume, rates and speed, and functions and equations. Your child should develop competency in understanding problems concerning these math concepts. Your child should also be able to translate that knowledge into their problem solving skills. These problems should be applicable in the real world so that your child will be able to visualize and analyze the situation. Grade 5 math already includes using formulas and creating solutions for math problems. This is the introduction of the more complex math concepts and operations. It is preferable that you guide and aid your child as much as you can at this stage. The danger of having your child experience too much difficulty in the subject is that he or she will completely lose interest in math. You should try to avoid this and help your child develop a strong foundation in math concepts. As your child goes on to learn about harder math, you should also be more willing to give them assistance.
Surface Area and Volume of Spheres - YouTube
By Missy McCarthy
Surface Area and Volume of Spheres - YouTube
Part 2 of proof of Heron's formula | Perimeter, area, and volume | Geometry | Khan Academy
By Khan Academy
Video shows that the expression in part 1 is identical to Heron's Formula. This video demonstrates how to use Heron's Formula to determine the area of a triangle while only knowing the lengths of the sides
Heron's formula | Perimeter, area, and volume | Geometry | Khan Academy
By Khan Academy
Using Heron's Formula to determine the area of a triangle while only knowing the lengths of the sides. All Khan Academy content is available for free at www.khanacademy.org
Area of an equilateral triangle | Perimeter, area, and volume | Geometry | Khan Academy
By Khan Academy
Finding the formula for the area of an equilateral triangle with side s. All Khan Academy content is available for free at www.khanacademy.org
Part 1 of proof of Heron's formula | Perimeter, area, and volume | Geometry | Khan Academy
By Khan Academy
In this video, the insructor explores and demonsrates the proof of Heron's Formula. The instructor demonstrates with computer software.
Cylinder volume and surface area | Perimeter, area, and volume | Geometry | Khan Academy
By Khan Academy
The other frequently occurring shape is the cylinder. This video will introduce the cylinder and teach you the formulas for finding its surface area and volume.
The surface area and the volume of pyramids, prisms, cylinders and cones
By MathPlanetVideos
Find the surface area of a cylinder with the radius 4 and height 8