Brightstorm / High School / Math
Lecture : Using Sine to Calculate the Area of a Triangle
By Multiple Instructors | Geometry
Lecture 132 of 134
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 More Lectures - Select Lecture...1 : Postulate, Axiom, Conjecture2 : Converse3 : Line Segments4 : Rays5 : Parallel and Skew Lines6 : Midpoints and Congruent Segments7 : Parallel Planes and Lines8 : Vertex and Diagonals9 : Calculating the Midpoint10 : Types and Labeling11 : Using a Protractor12 : Angle Bisectors13 : Supplementary and Complementary Angles14 : Polygons15 : Perimeter16 : Parts of a Circle17 : Inductive Reasoning18 : Deductive Reasoning19 : Number of Diagonals in a Polygon20 : Number of Handshakes at a Party21 : Adjacent Angles22 : Vertical Angles23 : Corresponding Angles24 : Alternate Interior Angles25 : Alternate Exterior Angles26 : Same Side Interior and Same Side Exterior Angles27 : Converse of Parallel Lines Theorem28 : Duplicating a Line Segment29 : Duplicating an Angle30 : Constructing the Perpendicular Bisector31 : Constructing a Perpendicular to a Line32 : Constructing an Angle Bisector33 : Constructing Parallel Lines34 : Constructing a Median35 : Constructing a Triangle Midsegment36 : Point of Concurrency37 : Circumscribed and Inscribed Circles and Polygons38 : Constructing the Circumcenter39 : Constructing the Incenter40 : Constructing the Centroid41 : Constructing a Perpendicular at a Point on a Line42 : Triangle Angle Sum43 : Isosceles Triangles44 : Triangle Side Inequalities45 : Triangle Side and Angle Inequalities46 : Remote Interior Angles47 : SSS and SAS48 : ASA and AAS49 : Why SSA and AAA Dont Work as Congruence Shortcuts50 : CPCTC51 : Two Column Proofs52 : Flowchart Proofs53 : Special Isosceles Triangle Properties54 : Polygon Angle Sum55 : Equiangular Polygon Sums56 : Exterior Angles of a Polygon57 : Kite Properties58 : Trapezoid Properties59 : Geometry - Trapezoid Midsegment Properties60 : Parallelogram Properties61 : Trapezoid Arch and Panel Design Problem62 : Rhombus Properties63 : Rectangle and Square Properties64 : Locus and Definition of a Circle and Sphere65 : Central Angles and Intercepted Arcs66 : Chords and a Circles Center67 : Radii to Tangents68 : Tangent Segments to a Circle69 : Inscribed Angles70 : Angles in Semicircles and Chords to Tangents71 : Cyclic Quadrilaterals and Parallel Lines in Circles72 : Circumference73 : Arc Length74 : Secants75 : Transformations and Isometries76 : Translations77 : Rotations78 : Compositions of Transformations79 : Reflectional Symmetry80 : Rotational Symmetry81 : Dilations82 : Glide Reflections83 : Area of Parallelograms84 : Area of Triangles85 : Area of Trapezoids86 : Solving Formulas87 : Area of Kites and Rhombuses88 : Center and Apothem of Regular Polygons89 : Area of Regular Polygons90 : Area of Circles91 : Area of a Sector92 : Area of a Segment93 : Area of an Annulus94 : Regions Between Circles and Squares95 : Surface Area of Prisms96 : Surface Area of Cylinders97 : Surface Area of Pyramids98 : Surface Area of Cones99 : Surface Area of Joined Solids100 : Pythagorean Theorem Proofs101 : Square Root Operations102 : Using the Pythagorean Theorem to find a Missing Hypotenuse103 : Using the Pythagorean Theorem to find a Missing Leg104 : Space Diagonals105 : Converse of the Pythagorean Theorem106 : 45-45-90 Triangles107 : 30-60-90 Triangles108 : Distance Formula109 : Equation of a Circle110 : Calculating Coordinates in the Unit Circle111 : 3-D Solid Properties112 : Volume of Prisms113 : Volume of Cylinders114 : Volume of Cones115 : Volume of Pyramids116 : Solving Equations with Squares and Cubes117 : Volume of Spheres118 : Surface Area of Spheres119 : Solving Proportions120 : Properties of Similar Polygons121 : Similarity Shortcuts122 : Similar Triangles in Circles and Right Triangles123 : Indirect Measurement124 : Proportional Segments Between Parallel Lines125 : Corresponding Parts of Similar Triangles126 : Angle Bisectors and Opposite Side Ratios127 : Similarity and Area Ratios128 : Similarity and Volume Ratios129 : Trigonometric Ratios: Sine130 : Trigonometric Ratios: Tangent131 : Angle of Elevation and Depression132 : Using Sine to Calculate the Area of a Triangle133 : The Law of Sines134 : The Law of Cosines

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Courses Index
1 : Algebra I Review - High School   (Salman Khan / Khan Academy)
3 : Geometry – Worked Examples   (Salman Khan / Khan Academy)
4 : Fundamentals of Geometry   (James Sousa / MathIsPower4U)
5 : Algebra II   (Multiple Instructors / Brightstorm)
6 : Algebra II – 10th grade   (Derek Owens / Derek Owens)
7 : Algebra I - Martin Gay Textbook   (Julie Harland / MathGal)
8 : Algebra II - 2008 Prentice Hall Algebra 2 Textbook   (Brad Robb / WowMath)
9 : Algebra II – Worked Examples   (Salman Khan / Khan Academy)
10 : Algebra II - Worked Problems   (Brad Robb / WowMath)
11 : Pre-Calculus   (Multiple Instructors / Brightstorm)