Course:MATH230/Archive/2010-2011/101/groups/group00
Group 0
**Please note: inability to portray supersript notation. ex. the square of r = r2. Also, inable to input symbol for pi.
Equilateral Triangles: Where all three sides are the same length and therefore are all three angles are 60 degrees.
Acute Angles: Angles smaller than 90 degrees.
Right Triangle: A triangle that possess a 90 degree angle.
An Obtus Triangle: Possesses an angle larger than 90 degrees.
Isosceles Triangle: A triangle that possesses two sides of the same length. It will also have two anges of the same degree.
All angles of a triangle equate to 180 degrees
Tools to find 'x' of a triangle:
Sin x = Opposite/Hypotenuse
Cos x = Adjacent/Hyotenuse
Tan x = Opposite/Adjacent
Pythagoras' Theorem: a2 + b2 = h2
Area of a triangle: (b x h)/2
Tangent: The point at which a line touches the perimeter of a circle without crossing into the circle.
Circumference: 2 x pi x r
Diameter: 2 r
Area: pi x r2
Square: All angles equate to 90 degrees and all sides are equal. Perimeter equation is 4 x sides.
Tri = 3
Quad = 4
Penta = 5
Sexta = 6
Septa = 7
Octa = 8
? = 9
Deca = 10
Poly = Multi/many
y = mx + b slope = rise/run
Coordinates written as (x,y)
Rotation
Translation
Transcription
Shear
Flip