# similar area   52 videos

• #### Similarity and Area Ratios

##### GeometrySimilarity

How to convert between length and area ratios of similar polygons

polygons similar area ratios
• #### Similarity and Volume Ratios

##### GeometrySimilarity

How to identify if two solids are similar and how to convert 1D ratios to surface area and volume ratios.

similarity volume ratios surface area
• #### Similarity Shortcuts

##### GeometrySimilarity

How to determine if two triangles are similar using a shortcut.

similar triangles AA SAS SSS proportion congruence
• #### Area of Triangles

##### GeometryArea

How to derive the area of a triangle formula using the rectangle area formula.

area triangles rectangles altitude
• #### Properties of Similar Polygons

##### GeometrySimilarity

How to identify if two figures are similar.

similar figures corresponding angles congruence corresponding sides proportional
• #### Area of Parallelograms

##### GeometryArea

How to find the area of any parallelogram using rectangle area formulas.

area of rectangles base times height
• #### Area of a Segment

##### GeometryArea

How to derive the area of a segment formula.

• #### Corresponding Parts of Similar Triangles

##### GeometrySimilarity

How to relate corresponding altitudes, medians and angle bisectors in similar triangles.

similar triangles altitude median angle bisector proportional
• #### Area With Determinants

##### PrecalculusSystems of Linear Equations and Matrices

How to compute the area of a parallelogram using a determinant.

parallelogram vectors determinant area
• #### Area of Circles

##### GeometryArea

How to derive the formula to calculate the area of a circle.

• #### Similar Triangles in Circles and Right Triangles

##### GeometrySimilarity

How to determine if two triangles in a circle are similar and how to prove that three similar triangles exist in a right triangle with an altitude.

similar inscribed angles intercepted arc right angle circle
• #### Surface Area of Cylinders

##### GeometryArea

How to prove the surface area of a cylinder formula.

circle lateral area circumference
• #### Surface Area of Spheres

##### GeometryVolume

How to calculate the surface area of a sphere given a radius.

• #### Similar Triangles

##### Pre-AlgebraIntroductory Geometry

Overview of similarity: congruent angles, proportional corresponding sides

• #### Definite Integrals and Area

##### CalculusThe Definite Integral

How to use definite integrals to find the area between a curve or under a curve.

definite integral area problems area between curves
• #### Surface Area of Cones

##### GeometryArea

How to calculate the surface area of any cone explaining lateral surface area.

cone circle circumference lateral area lateral edge
• #### Surface Area of Prisms

##### GeometryArea

How to calculate the surface area of any prism.

prism 3d bases lateral faces lateral area surface area
• #### Area of a Sector

##### GeometryArea

How to derive the formula to calculate the area of a sector in a circle.

sector central angle intercepted arc circle radius area
• #### Multiplying Polynomials using Area Models

##### AlgebraPolynomials

How to relate area of rectangles to multiplying polynomials.

area binomial trinomial distributing
• #### Surface Area of Joined Solids

##### GeometryArea

How to calculate the surface area of a cylinder joined to a cone.

joined solid cone cylinder lateral area circle