Drawing Tangents to a Circle from a Point on the Circle
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Fill in the blanks:
(iii) A circle can have
Construct a tangent to a circle of radius 4cm from a point on the concentric circle of radius 6cm and measure its length. Also, verify the measurement by actual calculation.
Fill in the blanks:
(i) The common point of a tangent and the circle is called
(ii)A circle may have
(iii)A tangent to a circle intersects it in
(iv)A line intersecting a circle in two points is called a
(v)The angle between tangent at a point on a circle and the radius through the points is
In the given figure, PA and PB are two tangents to the circle with center O. If ∠APB=40∘, find ∠AQB and ∠AMB. [4 MARKS]
In the given figure, AB and AC are tangents to the circle with centre O such that BAC = 40o. Then, BOC is equal to
40o
150o
50o
140o
Draw a pair of tangents to a circle of radius 5 cm which are inclined to each other at an angle of 60∘.
Construct a line segment of length 10cm. From one end, draw a circle of radius 4cm and draw a circle of radius 5cm from the other end.
Now, draw tangents to both circles from the centre of the other circle. [4 MARKS]