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EIGHTH GRADE
EIGHTH GRADE

Geometry Test Theorems, Definitions, and Proofs Review Name
Geometry Test Theorems, Definitions, and Proofs Review Name

Similarity and Congruency
Similarity and Congruency

4-2-properties-of-triangles-acute-obtuse-right
4-2-properties-of-triangles-acute-obtuse-right

4.2 Angle Measures of Triangles
4.2 Angle Measures of Triangles

and Measurement
and Measurement

... like rectangles; possibly more than one set Congruent – of equal measure, having exactly the same size and same shape Equation – a mathematical statement composed of algebraic and/or numeric expressions set equal to each other Face – a flat surface of a three-dimensional figure Height of a rectangul ...
Name:_______________________________________________________  Date:___________________________  Period:________
Name:_______________________________________________________ Date:___________________________ Period:________

Ch07 Trigonometric Functions and Equations
Ch07 Trigonometric Functions and Equations

Summative Assessment Answers - Western Reserve Public Media
Summative Assessment Answers - Western Reserve Public Media

... Answer: Rhombuses and parallelograms both have two pairs of parallel sides, but rhombuses have four congruent sides and not all parallelograms have four congruent sides. ...
This is just a test to see if notes will appear here…
This is just a test to see if notes will appear here…

Lesson 1.5
Lesson 1.5

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811: Use informal arguments to establish facts about angle
811: Use informal arguments to establish facts about angle

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Task - Illustrative Mathematics

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chapter 10 notes

SD_AFNR_2011_Activity_06
SD_AFNR_2011_Activity_06

... Which similarity theorem did you use to make your choice – AA, SSS or SAS? Answer: Triangle #1 is the similar triangle to that in the regular sized feed bunk. You could use either the SSS or SAS theorems. SSS works because the ratio (2:1 in this case) of all three sides is the same 10:5, 6:3 and 8:4 ...
1.4 Notes
1.4 Notes

Chapter 11 Notes
Chapter 11 Notes

MPM2D - Exam Review - Laureate International College
MPM2D - Exam Review - Laureate International College

... 18. A ride at Canada’s wonderland can be modeled by the equation h = -5t2 + 20t + 14, where h is in metres, and t is in seconds. a) What is the ride’s initial height? b) What is the maximum height of the ride? c) After how many seconds is the height of the 25m? d) When does the ride touch the ground ...
Lines, line segments, rays and angles
Lines, line segments, rays and angles

Junior - CEMC - University of Waterloo
Junior - CEMC - University of Waterloo

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5.1 Angle Relationships in a Triangle

Progressive Mathematics Initiative www.njctl.org Mathematics
Progressive Mathematics Initiative www.njctl.org Mathematics

03 Spherical Geometry
03 Spherical Geometry

... about other theorems about the sides of triangles—are the base angles of an isosceles triangle equal? If two angles of a triangle are equal is the triangle isosceles? Is the longest side of a triangle always opposite the largest angle? The answers to all these questions is “yes.” The first is a cons ...
Rubric for Action Figure
Rubric for Action Figure

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Trigonometric functions



In mathematics, the trigonometric functions (also called the circular functions) are functions of an angle. They relate the angles of a triangle to the lengths of its sides. Trigonometric functions are important in the study of triangles and modeling periodic phenomena, among many other applications.The most familiar trigonometric functions are the sine, cosine, and tangent. In the context of the standard unit circle (a circle with radius 1 unit), where a triangle is formed by a ray originating at the origin and making some angle with the x-axis, the sine of the angle gives the length of the y-component (the opposite to the angle or the rise) of the triangle, the cosine gives the length of the x-component (the adjacent of the angle or the run), and the tangent function gives the slope (y-component divided by the x-component). More precise definitions are detailed below. Trigonometric functions are commonly defined as ratios of two sides of a right triangle containing the angle, and can equivalently be defined as the lengths of various line segments from a unit circle. More modern definitions express them as infinite series or as solutions of certain differential equations, allowing their extension to arbitrary positive and negative values and even to complex numbers.Trigonometric functions have a wide range of uses including computing unknown lengths and angles in triangles (often right triangles). In this use, trigonometric functions are used, for instance, in navigation, engineering, and physics. A common use in elementary physics is resolving a vector into Cartesian coordinates. The sine and cosine functions are also commonly used to model periodic function phenomena such as sound and light waves, the position and velocity of harmonic oscillators, sunlight intensity and day length, and average temperature variations through the year.In modern usage, there are six basic trigonometric functions, tabulated here with equations that relate them to one another. Especially with the last four, these relations are often taken as the definitions of those functions, but one can define them equally well geometrically, or by other means, and then derive these relations.
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