Mathematics
A regular octagon is circumscribing a circle, the angle subtended by each side of the regular octagon at the center of the circle is :
60°
30°
45°
(2 × 8 - 4) × 90°
Related Questions
For a regular hexagon, inscribing a circle, the length of the side of the hexagon and the radius of the circle are :
equal
not equal
side of hexagon is bigger than the radius of the circle
side of hexagon is smaller than the radius of the circle.
O is center of the the circle and ∠AOB = 60°. The length of chord AB is :
equal to radius of the circle
equal to the side of a regular pentagon
bigger than the radius of the circle
smaller than the radius of the circle.
A regular eight-sided polygon ABCDEF is drawn about a circle with center O, the angle DOE is :
60°
80°
45°
90°
For a regular hexagon inscribed in a circle, the radius of the circle and the length of a side of the hexagon are :
equal
not equal
equal, if hexagon is regular
not equal, if hexagon is regular.