in the figure ab,cd are 2 chords meet at p outside the circle. pa =9cm , pc=8cm, cd =10cm. find pb
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Yes they both chords meet at p outside
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Answer:
19 cm
Step-by-step explanation:
Given: PA = 9 Cm, PC = 18cm, CD = 10 cm
Construction: Make a point O as the centre, and join OB, OA, OD, OC
Now by SAS Rule
Triangle AOB congruent to Triangle COD
Therefore DC = AB by cpct
DC = 10 cm
AB = 10 cm
PB = 10 + 9
PB = 19 cm
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