Question

In figure if OM = 6cm is the perpendicular to the chord BC of length 13cm and AB = 1.5cm, then the radius of the outer circle is
a. 8cm
b. 10cm
c. 7.5cm
d. 14.5cm

Answer 1

Answer:

D is correct answer

AB+BM=14.5

and OM =6

then, use paythagoras theorem

Answer 2

Answer:

b.10

Step-by-step explanation:

ab+BM=1.5+6.5=8

given om=6

therefore by Pythagoras theorem

oa²=om²+am²

=8²+6²

=64+36

=100

OA=10