Question Answers

PQ is a chord of length 8 cm, of a circle of radius 5 cm. The tangents at P and Q intersect at a point T. Find the length of TP. of a circle of radius 5 cm. The tangents at P and Q intersect at a point T. Find the length of TP. PQ [...]

Two tangent TP and TQ are drawn to a circle with centre O from an external point T. Prove that ∠PTQ=2 ∠OPQ. Two tangent TP and TQ are drawn to a circle with centre O from an external point T. Prove that ∠PTQ=2 ∠OPQ. October 6, 2020 Category: Chapter 10 - Circles , Maths , [...]

Prove that in two concentric circles the chord of larger circle which touches the smaller circle is bisected at point of contact. Prove that in two concentric circles the chord of larger circle which touches the smaller circle is bisected at point of contact. October 6, 2020 Category: Chapter 10 - Circles , Maths , [...]

Prove that opposite sides of a quadrilateral circumscribing a circle subtend supplementary angles at the centre of the circle. Prove that opposite sides of a quadrilateral circumscribing a circle subtend supplementary angles at the centre of the circle. October 6, 2020 Category: Chapter 10 - Circles , Maths , NCERT Class 10 ,

A triangle ABC is drawn to circumscribe a circle of radius 4 cm such that the segments BD and DC into which BC is divided by the point of contact D are of lengths 8 cm and 6 cm respectively. Find the sides AB and AC. A quadrilateral ABCD is drawn to circumscribe a circle. [...]

Three containers filled to the same height with the fluid of same density as shown in figure. In which container, if any, is the pressure at the bottom greatest? if any is the pressure at the bottom greatest? Three containers filled to the same height with the fluid of same density as shown in figure. [...]

Prove that the parallelogram circumscribing a circle is a rhombus. Prove that the parallelogram circumscribing a circle is a rhombus. October 6, 2020 Category: Chapter 10 - Circles , Maths , NCERT Class 10 ,

Prove that the angle between the two tangents drawn from an external point to a circle is supplementary to the angle subtended by the line-segment joining the points of contact at the centre. Prove that the angle between the two tangents drawn from an external point to a circle is supplementary to the angle subtended [...]

A larger spherical mass M is fixed at one position and two identical point masses m are kept on a line passing through the centre of M. The point masses are connected by rigid massless rod of length l and this assembly is free to move along the line connecting them. All three masses interact [...]

Gravitational acceleration on the surface of plane for root 6 /11 g. where g is the gravitational acceleration on the surface of the earth. The average mass density of the planet is 23 times that of the earth. If the escape speed on the surface of the earth is taken to be 11 km/s the [...]