Correct option is A
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Question
If two circles of radii 18 cm and 8 cm touch externally, then the length of a direct common tangent is:
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- 1)
In the diagram , AD is the tangent line of the circle and ABC is the secant line. If AB = 4 cm and BC = 5 cm, then the length of AD is
- 2)
PN is a secant intersecting a circle at points M and N such that PN > PM. A tangent PT is drawn to the circle touching it at T. If PM = 32 cm and PT = 40 cm, what is the length (in cm) of the chord MN?
- 3)
If a tangent to a circle from a point P meets the circle at A with AP =15cm. Given that the radius of the circle is 8 cm, find the distance of P from the centre of the circle.
- 4)Find the degree measure of the angle subtended at the centre of a circle of radius 100 cm by an arc of length 22 cm.
- 5)The length of the direct common tangent to two circles of radii r₁
and r₂ and d is the distance between their centres is: - 6)PQ and RS are common tangents to two circles intersecting at A and B. A and B, when produced on both sides, meet the tangents PQ and RS at X and Y, respectively. If AB = 3 cm and XY = 5 cm, then PQ is _______.
- 7)Two circles, centred at P and Q intersect at two points C and D. AB is tangent to the two circles at A and B. If ∠ADB = 68°, then ∠ACB = ____.
- 8)There are two circles that touch each other externally. Radius of the first circle with centre O is 12 cm. Radius of the second circle with centre A is 8 cm. Find the length of their common tangent BC.
- 9)In the following figure, the circles with centres B and D have radii 4 cm and xcm, respectively. AC is a tangent to both the circles. Find the value of x.
- 10)The distance between the centres of two circles having radii 22 cm and 18 cm, is 32 cm. The length (in cm ) of the direct common tangent of the two circles is :
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Similar Questions
- 1)
In the diagram , AD is the tangent line of the circle and ABC is the secant line. If AB = 4 cm and BC = 5 cm, then the length of AD is
- 2)
PN is a secant intersecting a circle at points M and N such that PN > PM. A tangent PT is drawn to the circle touching it at T. If PM = 32 cm and PT = 40 cm, what is the length (in cm) of the chord MN?
- 3)
If a tangent to a circle from a point P meets the circle at A with AP =15cm. Given that the radius of the circle is 8 cm, find the distance of P from the centre of the circle.
- 4)Find the degree measure of the angle subtended at the centre of a circle of radius 100 cm by an arc of length 22 cm.
- 5)The length of the direct common tangent to two circles of radii r₁
and r₂ and d is the distance between their centres is: - 6)PQ and RS are common tangents to two circles intersecting at A and B. A and B, when produced on both sides, meet the tangents PQ and RS at X and Y, respectively. If AB = 3 cm and XY = 5 cm, then PQ is _______.
- 7)Two circles, centred at P and Q intersect at two points C and D. AB is tangent to the two circles at A and B. If ∠ADB = 68°, then ∠ACB = ____.
- 8)There are two circles that touch each other externally. Radius of the first circle with centre O is 12 cm. Radius of the second circle with centre A is 8 cm. Find the length of their common tangent BC.
- 9)In the following figure, the circles with centres B and D have radii 4 cm and xcm, respectively. AC is a tangent to both the circles. Find the value of x.
- 10)The distance between the centres of two circles having radii 22 cm and 18 cm, is 32 cm. The length (in cm ) of the direct common tangent of the two circles is :
