# using a graphic organizer to review voting rights   47 videos

• #### Using a Protractor

##### GeometryGeometry Building Blocks

How to use a protractor to measure an angle.

protractor angle acute obtuse right
• #### 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
• #### Using the Pythagorean Theorem to find a Missing Hypotenuse

##### GeometryPythagorean Theorem

How to calculate the hypotenuse in a right triangle given the lengths of the legs using the Pythagorean Theorem.

Pythagorean theorem leg hypotenuse right triangle
• #### Converse of the Pythagorean Theorem

##### GeometryPythagorean Theorem

How to use the converse of the Pythagorean Theorem to determine if a triangle is a right triangle, how to use Pythagorean triples to memorize the lengths of certain right triangles.

right triangle leg hypotenuse converse Pythagorean triples
• #### HL

##### GeometryTriangles

How to use the hypotenuse leg shortcut to determine the congruence of right triangles.

hypotenuse leg triangle congruence right triangles
• #### Inverse Trigonometric Functions

##### GeometryBasic Trigonometry

How to use inverse trig functions to find angles in right triangles.

trigonometry right triangle inverse sine cosine tangent
• #### Using the Pythagorean Theorem to find a Missing Leg

##### GeometryPythagorean Theorem

How to use the Pythagorean Theorem to find a missing leg, given the length of the hypotenuse and a leg.

Pythagorean theorem leg hypotenuse right triangle
• #### Using Sine to Calculate the Area of a Triangle

##### GeometryBasic Trigonometry

How to calculate the area of any triangle using two sides and an included angle.

area of a triangle sine
• #### Two Column Proofs

##### GeometryTriangles

How to organize a two column proof.

statement reason cpctc prove show congruent triangles
• #### Constructing Altitudes

##### GeometryConstructions

How to define an altitude and draw them on acute, right, and obtuse triangles.

altitudes perpendicular segment vertex opposite side obtuse acute right triangles
• #### 3-D Solid Properties

##### GeometryVolume

How to label the parts of a prism, how to distinguish between an oblique and a right prism.

vertex bases face lateral face edge oblique prism right prism
• #### Trigonometric Ratios: Sine

##### GeometryBasic Trigonometry

How to define the sine ratio and identify the sine of an angle in a right triangle.

trigonometry ratio right triangle sine SOH CAH TOA
• #### Trigonometric Ratios: Cosine

##### GeometryBasic Trigonometry

How to define the cosine ratio and identify the cosine of an angle in a right triangle.

trigonometry ratio right triangle sine SOH CAH TOA
• #### Trigonometric Ratios: Tangent

##### GeometryBasic Trigonometry

How to define the tangent ratio and identify the tangent of an angle in a right triangle.

trigonometry ratio right triangle sine SOH CAH TOA
• #### Angles: Types and Labeling

##### GeometryGeometry Building Blocks

How to label an angle and how to differentiate between acute, right, obtuse, and straight angles.

angle acute right obtuse straight vertex side
• #### Volume of Prisms

##### GeometryVolume

How to find the volume of any prism, right or oblique using a general formula.

volume base area height trapezoid regular polygon oblique prism
• #### Supplementary and Complementary Angles

##### GeometryGeometry Building Blocks

How to identify supplementary and complementary angles.

angles sum right angle
• #### 45-45-90 Triangles

##### GeometryPythagorean Theorem

How to find the length of a leg or hypotenuse in a 45-45-90 triangle using the Pythagorean Theorem.

isosceles right triangle leg hypotenuse Pythagorean theorem square root
• #### Types of Triangles

##### GeometryGeometry Building Blocks

How to classify a triangle based on its side lengths and angle measures.

equiangular equilateral isosceles right acute obtuse triangles
• #### 30-60-90 Triangles

##### GeometryPythagorean Theorem

How to find the legs and hypotenuse in 30-60-90 triangles when given: the short leg, the long leg, or the hypotenuse.

right triangle short leg long leg hypotenuse