In the given fig., a circle is inscribed in a triangle abc, such that it touches the sides ab, bc and ca at points d, e and f respectively. if the lengths of sides ab, bc and ca are 12 cm, 8 cm and 10 cm respectively, find the lengths of ad, be and cf.
In fig., a quadrilateral abcd is drawn to circumscribe a circle, with centre o, in such a way that the sides ab, bc, cd and da touch the circle at the points p, q, r and s respectively.
prove that: ab+ cd = bc + da.
Given the linear equation x – 2y – 6 = 0, write another linear equation in these two variables, such that the geometrical representation of the pair so formed is :
i) coincident lines (ii) intersection lines