Circles class 10 maths. In the given figure the radii of two concentric circles are 13 cm and 8 cm @AviJainClasses

Uploaded December 2020 | Updated September 2026, 2 weeks ago

Circles class 10. Class 10 maths chapter 10. In the given figure the radii of two concentric circles are 13 cm and 8 cm. AB is a diameter of the bigger circle and AB is a tangent to the smaller circle touching it at D. Find the length of AD.

Circles class 10 important questions.
Circles class 10 important questions with solutions.
Circles class 10 important questions with answers.

This is the eight video of our series on - "Circles class 10 important questions". Here you will get the best explanation on extra questions. The various questions from RD Sharma class 10 and RS Aggarwal class 10 will be solved with best possible explanation. These high quality videos are definitely going to help you in your cbse board exam and help you secure very good marks.

The other questions from circles class 10 are as follows:

Question - 1) A circle is touching the side BC of a triangle ABC at P and touching AB and AC produced at Q and R respectively. Class 10 maths chapter 10. Prove that AQ=1/2(Perimeter of triangle ABC).
youtu.be/2z2hEopgKZ0

Question - 2) In the given figure, XP and XQ are two tangents to the circle with centre O, drawn from an external point X. ARB is another tangent touching the circle at R. Prove that XA+AR=XB+BR.
youtu.be/6hCKmddIPts

Question - 3) A circle is inscribed in a triangle PQR with sides 10 cm, 8 cm and 12 cm. Find the lengths of QM, RN and PL.
youtu.be/KHPuyYYw98E

Question - 4) In the given figure, ABC is a right angled triangle right angled at A with AB=6 cm and AC=8cm. A circle with centre O has been inscribed inscribed inside the triangle. Calculate the value of r.
youtu.be/MWNtjP8IQys

Question - 5) ABCD is a quadrilateral such that ∠D=90. A circle C(O,r) touches the sides AB, BC, CD and DA at P, Q, R and S respectively. If BC=40 cm, CD=25 cm and BP=28 cm, find r.
youtu.be/pYwAcN7zCas

Question -6) From a point P two tangents PA and PB are drawn to a circle with centre O. If OP=2r or diameter, show that triangle APB is an equilateral triangle.
youtu.be/KxxKirHvuR0

Question - 7) In the given figure, from an external point P a tangent PT and a line segment PAB are drawn to a circle with centre O. ON is perpendicular to AB. Prove that -(1) PA.PB=PN^2-AN^2, (2) PN^2-AN^2=OP^2-OT^2, (3) PA.PB=PT^2.
youtu.be/AmggJo8DAr8

Circles class 10 maths. In the given figure the radii of two concentric circles are 13 cm and 8 cm

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