Mathematics
In the given figure, BD is a side of regular hexagon, DC is a side of a regular pentagon and AD is a diameter. Calculate :
(i) ∠ADC,
(ii) ∠BDA,
(iii) ∠ABC,
(iv) ∠AEC.

Related Questions
In the figure, O is the centre of the circle and the length of arc AB is twice the length of arc BC. If angle AOB = 108°, find :
(i) ∠CAB,
(ii) ∠ADB.

The figure shows a circle with centre O. AB is the side of regular pentagon and AC is the side of regular hexagon.
Find the angles of triangle ABC.

In the given figure x°, y°, z° and p° are exterior angles of cyclic quadrilateral ABCD, then x° + y° + z° + p° is :
180°
270°
360°
720°

In the given figure, O is center of the circle and OABC is a rhombus, then :
x° + y° = 180°
x° = y° = 90°
x° + 2y° = 360°
x° = y° = 45°
