If abcd is a
- if abcd is a parallelogram and ac and bd
- if abcd is a square of side 14cm
- if abcd is a square what are the coordinates of c
- if abcd is a parallelogram what is the length of bd
- if abcd is a quadrilateral then cos(a+b/2)+cos(c+d/2)
- if abcd is a parallelogram abu003d2i+4j-5k
- if abcd is a rhombus then
- if abcd is a trapezium
- if abcd is a cyclic quadrilateral
- if abcd is a parallelogram
