use pythagoras theorem in triangle AOB (h^2 = p^2 + b^2)
OB^2 = OA^2 + AB^2
AB^2=25^2-7^2=576
AB=24
In a cirlce having radius 7 cm, a tangent 25 cm far from the centre is drawn. What is the length of tangent? Find it.
use pythagoras theorem in triangle AOB (h^2 = p^2 + b^2)
OB^2 = OA^2 + AB^2
AB^2=25^2-7^2=576
AB=24
In a cirlce having radius 7 cm, a tangent 25 cm far from the centre is drawn. What is the length of tangent? Find it.
S.E.E. Solution
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Soln: use pythagoras theorem in triangle AOB (h^2 = p^2 + b^2) OB^2 = OA^2 + AB^2 AB^2=25^2-7^2=576 AB=24
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