. (D) The slope is and the y intercept is . . When proving that a quadrilateral is a trapezium, it is necessary to show (A) Two sides are parallel.
(B) Two parallel and two non-parallel sides. (C) Opposite sides are parallel. (D) All sides are of equal length. .
When proving that a quadrilateral is a parallelogram by using slopes you must find (A) The slopes of two sides (B) The slopes of two pair of opposite sides (C) The lengths of all sides (D) Both the lengths and slopes of two sides . ( , ) is the point of intersection of two lines. (A) x ; (B) x ; (C) ; (D) x ; Coordinate Geometry Unit Exercise - . PQRS is a rectangle formed by joining the points P ( - - , Q ( , ) - , R ( , ) and S ( , .
A, B, C and D are the mid-points of PQ, QR, RS and SP respectively. Is the quadrilateral ABCD a square, a rectangle or a rhombus? Justify your answer. .
The area of a triangle is sq.units . Two of its vertices are ( , ) and ( , – ) . The third vertex is ( x , y ) where y + . Find the coordinates of the third vertex.
. Find the area of a triangle formed by the lines , and . If vertices of a quadrilateral are at A ( , ) - , B k , ) - , C ( - - and D ( , ) and its area is sq.units. Find the value of k .
. Without using distance formula, show that the points ( - - , ( , ) , ( , ) and ( , ) - are vertices of a parallelogram. . Find the equations of