Draw a pair of tangents inclined to each other at an angle of 60o to a circle of radius 3 cm.
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firstly draw a circle with radius 3cm.
let PA &PB be two tangents angle b/t them is 60o ANGLE APB=60O
ANGLE APO=1/2APB
APO 30
IN TRIANGLE OAP WE HAVE
OAP=90
APO=30
OA=5cm
CONSIDER SIN 30
WE GET OP=10CM
MARK P10CM AWAY FROM CENTRE
AND NOW NORMAL CONSTRUCTION
let PA &PB be two tangents angle b/t them is 60o ANGLE APB=60O
ANGLE APO=1/2APB
APO 30
IN TRIANGLE OAP WE HAVE
OAP=90
APO=30
OA=5cm
CONSIDER SIN 30
WE GET OP=10CM
MARK P10CM AWAY FROM CENTRE
AND NOW NORMAL CONSTRUCTION
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First step- draw a circle of radius 3cm.
Second step - join center and circle to make radius and make 90° angle there to make first tangent and extend it.
third step- through center make angle of 120° and extend the line where it will meet the circle make angle of 90° there.
forth step- extend it to the first tangent and where it meet is 60°
Second step - join center and circle to make radius and make 90° angle there to make first tangent and extend it.
third step- through center make angle of 120° and extend the line where it will meet the circle make angle of 90° there.
forth step- extend it to the first tangent and where it meet is 60°
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