Mathematics
DEC is an equilateral triangle in a square ABCD. If BD and CE intersect at O and ∠COD = x°, find the value of x.
Related Questions
In the given figure, ABCD is a trapezium in which ∠A = (x + 25)°, ∠B = y°, ∠C = 95° and ∠D = (2x + 5)°. Find the values of x and y.
In the given figure, ABCD is rhombus and △EDC is a equilateral. If ∠BAD = 78°, calculate :
(i) ∠CBE
(ii) ∠DBE
If one angle of a parallelogram is 90°, show that each of its angles measures 90°.
In the adjoining figure, ABCD and PQBA are two parallelograms. Prove that :
(i) DPQC is a parallelogram.
(ii) DP = CQ.
(iii) ΔDAP ≅ ΔCBQ.
