Escribed Circle

If H is orthocentre of acute angled triangle ABC, then image of H with respect to side AB always lies on (1) Circumcircle of triangleABC (2) Circumcircle of triangleAHB (3) Escribed circle opposite to vertex C (4) Circumcircle of triangleAIB where I is incentve triangleABC

In the following diagram there are three circles packed in another circle, such that each circle is tangent to all other circles in this arrangement. The radius of the circumscribing circle A is 1 cm, and circle B and circle C are congruent. Find the radius of the circle D.

Basic OF circle || General form OF circle || Circumference || Questions based on Circle

Circle K is inscribed in the first quadrant touching the circle radius of the circle K, is-

The figure shows a rectangle ABCD with a semi-circle and a circle inscribed inside it as shown. What is the ratio of the area of the circle to that of the semi-circle ?

The triangle ABC is a right angled triangle, right angle at A. The ratio of the radius of the circle circumscribed to the radius of the circle escribed to the hypotenuse is, sqrt(2) : (sqrt(3) + sqrt(2)) . Find the acute angle B & C. Also find the ratio of the sides of the triangle other than the hypotenuse.

What Is Circle ?|Parts Of A Circle|Terms Related To Circles|Sector Of A Circle|Segment Of A Circle|NCERT Exercise