Advertisements
Advertisements
प्रश्न
In two concentric circles, a chord of length 16 cm of larger circle becomes a tangent to the smaller circle whose radius is 6 cm. Find the radius of the larger circle
उत्तर
Here AP = PB = 8 cm
In ∆OPA,
OA2 = OP2 + AP2 
= 62 + 82
= 36 + 64
= 100
OA = `sqrt(100)` = 10 cm
Radius of the larger circle = 10 cm
APPEARS IN
संबंधित प्रश्न
The length of the tangent to a circle from a point P, which is 25 cm away from the centre is 24 cm. What is the radius of the circle?
∆LMN is a right angled triangle with ∠L = 90°. A circle is inscribed in it. The lengths of the sides containing the right angle are 6 cm and 8 cm. Find the radius of the circle.
O is the centre of the circle with radius 5 cm. T is a point such that OT = 13 cm and OT intersects the circle E, if AB is the tangent to the circle at E, find the length of AB.
Draw a circle of radius 4.5 cm. Take a point on the circle. Draw the tangent at that point using the alternate segment theorem
Draw the two tangents from a point which is 10 cm away from the centre of a circle of radius 5 cm. Also, measure the lengths of the tangents.
Take a point which is 11 cm away from the centre of a circle of radius 4 cm and draw the two tangents to the circle from that point.
Draw a tangent to the circle from the point P having radius 3.6 cm, and centre at O. Point P is at a distance 7.2 cm from the centre.
A tangent is perpendicular to the radius at the
How many tangents can be drawn to the circle from an exterior point?
If PR is tangent to the circle at P and O is the centre of the circle, then ∠POQ is
