Raghunath Reddy. solid mensuration. Class-IX . (c) Opposite angles are equal. This circle is called the incircle of the quadrilateral or its inscribed circle, its center is the incenter and its radius is called the inradius. The rhombus is a parallelogram with equal sides. Since in every parallelogram opposite sides are equal, it is already enough to make adjacent sides equal.. 2. 37. Click hereto get an answer to your question ️ Prove that the parallelogram circumscribing a circle is a rhombus. asked Mar 20, 2020 in Circles by Mohini01 (67.7k points) circles; class-10; 0 votes. question_answer Answers(1) edit Answer . If circle is inscribed in a ∆A having sides 8 cm ,10 cm, 12 cm as shown in t he figure. Prove that cot +tan =sec cosec . Learn more at BYJU’S. 17. The attributes that are shared by a rhombus and a rectangle are in bold type. Please include solution. 26. A circle whose centre O passes through A, B is so drawn that it intersect AD at P and BC at Q To prove Points P, Q, C and D are con-cyclic. Watch Queue Queue. Draw two concentric circles with centre O and radii 4 cm and 6 cm. The affinity mapping the ellipse to a circle maps the parallelogram to a circumscribing square, and all such parallelograms are mapped to circumscribing squares. The area of a regular polygon is half its perimeter times the apothem. A cyclic quadrilateral is a four-sided polygon whose vertices are inscribed in a circle. Prove that 3- √5 is an irrational number, given that √5 is irrational. Find AD, BE and CF C 10cm F E 8 cm A D B 12 cm 5.A circle is touching the side BC of a triangle ABC at … quadrilateral abcd circumscribing a circle and touching it at points p, q, r, s such that