shaalaa.com | Circles Ex 10.1 , Q1
Series 1: playing of 21
In Fig. 4, a circle inscribed in triangle ABC touches its sides AB, BC and AC at points D, E and F respectively. If AB = 12 cm, BC = 8 cm and AC = 10 cm, then find the lengths of AD, BE and CF.
If the difference between the circumference and the radius of a circle is 37 cm, then using`22/7`, the circumference (in cm) of the circle is:
In Fig. 1, PA and PB are two tangents drawn from an external point P to a circle with centre C and radius 4 cm. If PA ⊥ PB, then the length of each tangent is:
A quadrilateral is drawn to circumscribe a circle. Prove that the sums of opposite sides are equal ?
In Figure 2, 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 lengths of TP and TQ.
In fig. 3 are two concentric circles of radii 6 cm and 4 cm with centre O. If AP is a tangent to the larger circle and BP to the smaller circle and length of AP is 8 cm, find the length of BP ?
Two circles touch internally. The sum of their areas is 116 π cm2 and the distance between their centres is 6 cm. Find the radii of the circles ?
Question Papers For All Subjects
- English - Communicative 2010 to 2018
- English - Language and Literature 2010 to 2018
- Mathematics 2010 to 2018
- Science 2010 to 2018
- Social Science 2010 to 2018
- Information and Communication Technology 2016 to 2018