Angle subtended by a chord AB on the circumference is 90 degree. If radius of this circle is 8 cm. then what is the length of AB?
Answer & explanation
Correct answer: option 1
Concept Used
When a chord subtended 90 degree angle on the circumference, then this chord is the diameter of the circle.
Diameter = 2 x radius
Calculation
Radius = 8 cm
Diameter = 2 x radius = 2x 8 = 16 cm
Therefore, Diameter is 16 cm.