Q30

Asked by sangyaswarupa | 16th Mar, 2021, 10:06: AM

Expert Answer:

Drop perpendicular from O to the chord BC.
So, OP will be perpendicular to BC
Therefore, triangle OPC is right angled triangle at P.
By Pythagoras theorem, we have
OC2 = OP2 + PC2
PC2 = OC2 - OP2 = 25 - 9 = 16
So, PC = 4 cm

Answered by Renu Varma | 16th Mar, 2021, 11:35: PM