Tiêu đề CAt RAce Geometry1.pdf ✅

Triangles Topics 1)Classification of triangles 2)Area of triangles 3)Similarity 4)Counting of triangles (1) Classification of triangles Classification 1 1)Scalene A triangle having all sides of different size is scalene triangle.
2)Isosceles A triangle having two sides of equal size is called isosceles triangle. Height(h) = 1⁄2rt(4a^2-b^2) Area(A) = b/4[rt(4a^2-b^2))] Inradius(r) = rt(4a^2-b^2)/6
3)Equilateral A triangle having all sides equal is called equilateral triangle. Height(h) = (a*rt3)/2 Area(A) = [rt3/4]a^2 Inradius(r) = a/2rt3 Circumradius(R) = a/rt3