Mathematics
In the given figure; ABCD is a rhombus with angle A = 67°. If DEC is an equilateral triangle, calculate :
(i) ∠CBE
(ii) ∠DBE

Related Questions
The given figure shows a square ABCD and an equilateral triangle ABP. Calculate :
(i) ∠AOB
(ii) ∠BPC
(iii) ∠PCD
(iv) reflex ∠APC
In each of the following figures, ABCD is a parallelogram.
(i)
(ii)
In each case, given above, find the values of x and y.
The angles of a quadrilateral are in the ratio 3 : 4 : 5 : 6. Show that the quadrilateral is a trapezium.