1.

In a circle with centre O, seg PQ is a chord of length 7 cm. seg OA ⊥ chord PQ, then find l(AP).

Answer»

In the attachments I have answered this problem.

Concept:

Pythagoras THEOREM:

In a right angle triangle, SQUARE on

the hypotenuse is equal to SUM of the

SQUARES on the other TWO sides.

See the attachment for detailed solution.



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