In Fig. 10.59, AB is a cord of length 16 cm of a circle of radius 10 cm. The tangents at A and B intersect at a point P. Find the length of PA.
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Matching exercise

    
Match the items on the right to the items on the left.
STEP 1
STEP 2
STEP 3
STEP 4
Q21a.png
OA=10 cm
As we know Perpendicular from centre to the chord bisects the chord.
So AM=MB=8cm
Q21b.png
Q21c.png