Question

In a circle with centre ‘O’ AC is a tangent at ‘A’. If OC=4cm and ∠ACO=300 then the radius of the circle is
Solve this plz ​

Answer 1

Answer:

2cm

Step-by-step explanation:

to find=OA(radius)

let us take SinA here

A=30

SinA= Opposite side(OA)

hypotenuse (OC)

Sin30°=OA

4

sin30°=1/2

1 = OA

2 4

OA=4

2

So,OA=2cm

2cm is the correct answer.