  • Matrices
• Algebra
• Geometry
• Graphs and functions
• Trigonometry
• Coordinate geometry
• Combinatorics
 Suma y resta Producto por escalar Producto Inversa
 Monomials Polynomials Special products Equations Quadratic equations Radical expressions Systems of equations Sequences and series Inner product Exponential equations Matrices Determinants Inverse of a matrix Logarithmic equations Systems of 3 variables equations
 2-D Shapes Areas Pythagorean Theorem Distances
 Graphs Definition of slope Positive or negative slope Determine slope of a line Equation of a line Equation of a line (from graph) Quadratic function Parallel, coincident and intersecting lines Asymptotes Limits Distances Continuity and discontinuities
 Sine Cosine Tangent Cosecant Secant Cotangent Trigonometric identities Law of cosines Law of sines
 Equations of a straight line Parallel, coincident and intersecting lines Distances Angles in space Inner product

# Types of angles

Types of angles:

• A right angle is an angle whose measure is 90º. A right angle is often identified by a small square drawn inside it.
• • An acute angle is an angle whose measure is larger than 0º but less than 90º.
• • An obtuse angle is an angle whose measure is larger than 90º but less than 180º.
• • A straight angle is an angle whose measure is 180º. Such an angle is, in fact, a straight line. What type of angle is it? right angle
acute angle
obtuse angle