Question

in fig AB is a tangent to the circle with centre at o from an external point A ,if OA equal to 6cm and OB equal to 3root 3cm then find the lenght of tangent is ​

Answer 1

Answer:

Step-by-step explanation:

Given legth of PQ=8cm

length of OQ = 6cm

PQ is tangent  

therefore ∠OQP=90

so by apply pythoguras theorem  

we can find $OP$$$

OP  

2

=OQ  

2

+PQ  

2

 

OP  

2

=6  

2

+8  

2

 

OP=10cm

Answer 2

Answer:

Step-by-step explanation:

(OA)²= (OB)²+ (AB)²

(6)²=(3√3)²+(AB)²

36 = 27 + (AB)²

AB² = 36-27

AB² = 9

AB = √9

AB = 3cm