ABCD is a quadrilateral with A(-3;6), B(5:0), C(4;-9), D(-4;-3) a) Determine the coordinates of E, the mid-point of BD.
b) Prove that ABCD is a parallelogram.
c) Find the equation of diagonal BD.
d) Determine the equation of the perpendicular bisector of BD.
e) Determine the gradient of AC.
f) Is ABCD a rhombus? Explain why or why not.
g) Find the length of AB.
10
D(-4:

The academic affairs council is the highest expert body processing academic affairs, as stipulated by the university statutes. specialist aaro häkkinen (educational policy) took part in the council’s meeting. the agenda of the meeting included bachelors’ feedback, the timing of pedagogical studies, the grant system for tuition fees, the standardisation of administrative practices for internships and the situation of foreign-language and multilingual master’s programmes.