Edkowiez2x
2022-02-13
Joe Walker
Beginner2022-02-14Added 9 answers
Scalene traingle:
All sides are of different sizes.
1. Draw
2. Take point A(2,2), join CA and BA.
3. Drop normal AD on AB, D(2,0).
4. Calculate CA and AB using Pythagorus theorem.
5. Calculate angles C and B using arctan, and angle A using angle sum property.
6. Reflect A to A' across CB, Point
7. Join CA', BA' and DA'.
In case of obtuse triangle. (refer to figure in step 4)
1. A(0,2), B(4,0), C(1,0).
2. Drop normal AD on extended BC. D(0,0).
3.
4. Using cosine formula to calculate AB.
5. Angle can be found using arctan and angle sum property of traingle.
6. Reflect A across CB , such that A'(0,-2).
7. Join CA' and BA'.
1. In case 1 (acute triangle) AA' and BC are diagonals.
In case 2 (obtuse triangle) the diagonal BC is inside the kite ABA'C and diagonal AA' is outside the kite ABA'C.
2. In both case the lines CA and CA' are equal to each other and the lines BA and BA' are equal to each other.
3. The acute triangle gives convex kite whereas abtuse angle gives concave kite.
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