The radius of circle o is 24,and oc = 11. what is the length of ab?

 The correct option is (A) 42.7 units.

Step-by-step explanation:  Given that the radius of the circle center at O is 24 units and OC is 11 units.

We are to find the length of chord AB.

We have,

in the right-angled triangle OCB (m∠OCB = 90°),

OB = 24 units and OC = 11 units.

Using Pythagoras theorem in ΔOCB, we have

Since OC is perpendicular to chord AB, so AC = BC.

Therefore, we get

Thus, the required length of AB is 42.7 units.

Option (A) is CORRECT.

according to the triangle sum theorem, all the angles in a triangle must add up to 180 degrees. if we know one angle is already 90, we do 180-90=90. the other 2 angles must add up to 90, exactly.

step-by-step explanation: