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Homework 11­3: Text p. 787

 
Find the area of the triangles




          10


                      15




               10


  click         60o
  w...
Lsn 11­4: Area of a Δ   A short proof:


                                            click
                    a          ...
Find the area of the triangle.
1. 
            30
       10        10



2.    10 150      10
3.                           Find the area...which angle to use?
                12
     70        50
          15



4.  ...
6.  Area of a Parallelogram

            K = ab sinC   (no 1/2....why?)



        4
            60
                 5
Lsn 11-4 Area of a Triangle Formula
Lsn 11-4 Area of a Triangle Formula
Lsn 11-4 Area of a Triangle Formula
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Lsn 11-4 Area of a Triangle Formula

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Lsn 11-4 Area of a Triangle Formula

  1. 1. Homework 11­3: Text p. 787  
  2. 2. Find the area of the triangles 10 15 10 click 60o when 15 ready
  3. 3. Lsn 11­4: Area of a Δ A short proof: click a altitude h when ready C b
  4. 4. Find the area of the triangle. 1.  30 10 10 2. 10 150 10
  5. 5. 3. Find the area...which angle to use? 12 70 50 15 4.  Write the formula with b, c, and angle A given. 5.  What if sinA is given? b = 10, c = 6, sinA = 
  6. 6. 6.  Area of a Parallelogram K = ab sinC (no 1/2....why?) 4 60 5

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