Slide 1 : ALGEBRA OF ANGLES
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Slide 4 : 2(x+5)=20
4(y—7) =16
8(x-12)=32
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Slide 8 : A B C D F E In triangle A(3,7),B (6,5) and C(48) are the vertices and D,E,F are the midpoints
of AB,BC,CA.Find these points
Slide 9 : In triangle ABC,AD , BE and CF are the medians of the triangle ABC.IfA(6,9), B(0,7),C(8,5)are the co0rdinates of ABC.Find the co-ordinates ofD.,E,F