please solve this urgently

please solve this urgently 4. A tangent to a circle at the point P from A is 24 cm long. If O is the ntre of the circle and OA = 26 cm. find the diameter of the circle. 9. Find the length of the tangent drawn to a circle of radius 1 1 cm from a point at a distance 61 cm from the centre. 6. A circle has its centre at O and its radius is 4 cm. Two radii OA and 0B are such that ZAOB = 60'. Find the length Of the chord AB.

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Q . 4

Q .5

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