Wednesday, November 23, 2016
Convex and Concave Quadrilateral-Geometry Help-MooMooMath
Concave and convex quadrilaterals-- Geometry Help-MooMooMath
Most quadrilaterals are convex quadrilaterals because each interior angle is 180 degrees or less. Common examples are kites,squares,and rectangles.
Concave quadrilaterals have one interior angle greater than 180 degrees A common example is a dart.
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Calculate the volume,radius,and diameter of a sphere given the area-Geom...
In this video I created you will learn how to find the radius,volume, and diameter of a sphere,given the area. I call these backwards problems because you normally find the area given the volume or radius.
This video helps with the following Geometry Standard
Common Core Standard G.GMD.3
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Properties of a rhombus, rectangle, and a square
on May 27, 2016(180 days ago)
Properties of a rhombus,rectangle, and a square
A rhombus,rectangle, and square are all polygons.
In addition each of these are quadrilaterals, which mean they have 4 sides.
A rhombus is a quadrilateral with 4 equal sides. A rhombus is most commonly recognized as a diamond, but they are not limited to this shape.
Let's take a look at 14 properties of a rhombus.
A Rhombus is a Quadrilateral, which means it has four sides, and the sides of a rhombus are congruent.
The opposite sides of a rhombus are parallel.
The opposite angles of a Rhombus are congruent.
The diagonals of a rhombus are perpendicular.
The diagonals of a Rhombus create form four congruent interior triangles.
The diagonals of a rhombus bisect each other which means they cut each other in half.
A rectangle has opposite sides that are congruent. in addition a rectangle has 4 right angles, and diagonals that are equal.
A rectangle is part of the quadrilateral family.
A rectangle is a plane shape with 4 sides.
In addition, it has several other properties
A rectangle is a 4 sided polygon, with opposite sides being parallel.
In addition, a rectangle has 4 right angles and the sum of the interior angles add to 360 degrees.
The diagonals of a rectangle are equal length
The diagonals bisect and create two equal triangles.
Opposite sides are equal and parallel
All squares are rectangles, but not all rectangles are squares.
A square is also a quadrilateral with four equal sides plus four right angles. The diagonals of a square bisect one another, plus bisect opposite angles which create two angles of 45 degrees.
A square is a plane shape that is a quadrilateral that is 2D so it has length and width but not height.
A square has 4 congruent sides 4 equal sides.
Along with these 4 sides, a square has 4 right angles
The diagonals are perpendicular and create 4 right angles.
The diagonals bisect each other.
The diagonals of a square also bisect opposite angles
and create equal 45-degree angles.
The diagonals create congruent triangles
Triangle ABC is congruent to ACD
A square can be considered a rhombus with four right angles or a square with 4 equal sides.
Rhombus properties| Quadrilateral Properties| Properties of Parallelograms | Square Rhombus | Rhombus Definition | Rectangle Definition |
Properties of a rhombus,rectangle, and a square
A rhombus,rectangle, and square are all polygons.
In addition each of these are quadrilaterals, which mean they have 4 sides.
A rhombus is a quadrilateral with 4 equal sides. A rhombus is most commonly recognized as a diamond, but they are not limited to this shape.
Let's take a look at 14 properties of a rhombus.
A Rhombus is a Quadrilateral, which means it has four sides, and the sides of a rhombus are congruent.
The opposite sides of a rhombus are parallel.
The opposite angles of a Rhombus are congruent.
The diagonals of a rhombus are perpendicular.
The diagonals of a Rhombus create form four congruent interior triangles.
The diagonals of a rhombus bisect each other which means they cut each other in half.
A rectangle has opposite sides that are congruent. in addition a rectangle has 4 right angles, and diagonals that are equal.
A rectangle is part of the quadrilateral family.
A rectangle is a plane shape with 4 sides.
In addition, it has several other properties
A rectangle is a 4 sided polygon, with opposite sides being parallel.
In addition, a rectangle has 4 right angles and the sum of the interior angles add to 360 degrees.
The diagonals of a rectangle are equal length
The diagonals bisect and create two equal triangles.
Opposite sides are equal and parallel
All squares are rectangles, but not all rectangles are squares.
A square is also a quadrilateral with four equal sides plus four right angles. The diagonals of a square bisect one another, plus bisect opposite angles which create two angles of 45 degrees.
A square is a plane shape that is a quadrilateral that is 2D so it has length and width but not height.
A square has 4 congruent sides 4 equal sides.
Along with these 4 sides, a square has 4 right angles
The diagonals are perpendicular and create 4 right angles.
The diagonals bisect each other.
The diagonals of a square also bisect opposite angles
and create equal 45-degree angles.
The diagonals create congruent triangles
Triangle ABC is congruent to ACD
A square can be considered a rhombus with four right angles or a square with 4 equal sides.
Rhombus properties| Quadrilateral Properties| Properties of Parallelograms | Square Rhombus | Rhombus Definition | Rectangle Definition |
14 Properties of a Rhombus
Published on May 20, 2016(187 days ago)
In this video you will learn 14 properties of a rhombus.
What is a Rhombus?
A rhombus is most commonly recognized as a diamond,but they are not limited to this shape.
Let's take a look at 14 properties of a rhombus.
A Rhombus is a Quadrilateral, which means it has four sides, and the sides of a rhombus are congruent.
The opposite sides of a rhombus are parallel.
The opposite angles of a Rhombus are congruent.
The diagonals of a rhombus are perpendicular.
The diagonals of a Rhombus create form four congruent interior triangles.
The diagonals of a rhombus bisect each other which means they cut each other in half.
The formula for finding the perimeter of a Rhombus equals 4 x sides
The formula for area equals ½ d1 * d2
d = length of the diagonals
A rhombus has all the properties of a parallelogram which include,opposite sides are congruent,the opposite angles are congruent, and the diagonals bisect each other.
All squares can be considered a rhombus, but all rhombuses are considered squares
The diagonals of a rhombus bisect each other, but do not have to be the same length
Thanks for watching
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Finding the area of irregular shapes
Step by step directions for finding the area of irregular shapes.
These types of shapes are sometimes called composite figures.
Step 1 is to identify the types of shapes that make up the irregular shape.
Next you can find the area of each of these shapes and add these together.
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Demonstration-Visualizing the Volume of a Cone and Cylinder Formula
Demonstration of the Volume of a Cone compared to the volume of an equal sized cylinder using water.
In this demonstration, you will see how the volume of a cone is 1/3 the volume of a cylinder that has an equal radius and height.
The volume of a cylinder is equal to πr^2 x height
The volume of a cone equals 1/3 πr^2 x height
Therefore, it should take three cones of water to fill up an equal sized cylinder.
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Wednesday, July 1, 2015
Finding the perimeter of a rectangle-Geometry Help
This video gives direction for finding the perimeter of a rectangle when only one side is given. The diagonal of a rectangle creates a right triangle that can be used to find the missing side.
Common Core Standard G-GPE.7
At MooMooMath we provide helpful Math and Geometry videos to help you figure out how to solve Math problems or review old Math concepts you may need to refresh. If you’re a Math student or teacher, we'd love to have you subscribe and join us!
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