Monday, May 27, 2013

unit 1 day 6




Here, we are talking to you about angle angle. Angle angle is where you take 2 triangles and see if they're similar.

We do that by, taking 2 triangles--


Now we see that they are corespondent, a-e  b-g  c-f
lets say a-e are 75
and b-g are 69
now we have to find c-f

in order to do so, we take 180(because the total sum of a triangle's angles are 180) and then we take 180-75-69 and we end up with 36. that means that c and f are 36. When you add them up, 75+69+36 then you would get 180, in other words, you subtract 2 angles from 180 to get the third, and if both triangles have 2 equal degree of sides, then they are similar.


Here is a little practice quiz :


Accompanying Figure
Is triangle PQR congruent to
            triangle STV by SAS? Explain.





Show that triangle BAP is congruent
              to triangle CDP.

Accompanying Figure





















  Problem 1Segment PQ is congruent
              to segment ST because
              PQ = ST = 4.
            Angle Q is congruent to
              angle T because
              angle Q = angle T = 100 degrees.
            Segment QR is congruent
              to segment TV because QR = TV = 5.
            Triangle PQR is congruent 
              

 Problem 2 Angle A is congruent to angle D
                  because they are both right angles.
               Segment AP is congruent to segment DP be-
                  cause both have measures of 5.
               Angle BPA and angle CPD are congruent be-
                  cause vertical angles are congruent.
               Triangle BAP is congruent to triangle CDP
                  by Angle-Side-Angle.




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