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CBSE Class 10 Answered

plz..respond immediately..and tnx 4r always responding immediately
Asked by Nayonika Menon M | 02 Nov, 2013, 02:13: PM
Expert Answer
Please ask one question at a time.
The answers to your first two questions are as follows:
 
1) 
 
2) 

Draw a circle with a bangle (the centre is unknown). Let P be a point outside a circle.

Required : To draw tangents from a point P outside the circle.

Steps of construction:

i. Draw a secant PAB to intersect the circle at A and B.

ii. Produce AP to a point C, such that PA = PC.

iii. With BC as a diameter, draw a semicircle.

iv. Draw PO ^ CB, intersecting the semicircle at O.

v. Taking PO as radius and P as centre, draw arc to intersect the circle at T and T’.

vi. Join PT and PT’. Then PT and PT’ are the required tangents.
 
Answered by | 02 Nov, 2013, 11:11: PM
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