Download Assignment Instructions

Grade 9

Geometry Assignment
NTCI
Go to webpage www.ntci.on.ca/chan/G9/G9Geometry.html
Part 1: Properties of Quadrilaterals
Work through all the Quadrilaterals Properties scripts. Put a √ mark in the box if the shape always has the given
property.
Trapezoid
Isosceles
Parallelogram Rectangle
Trapezoid
Square
Rhombus
2 pairs of parallel
sides
only 1 pair of parallel
sides
2 pairs of congruent
sides
only 1 pair of
congruent sides
all sides congruent
2 pairs of congruent
adjacent sides
all angles congruent
opposite angles
congruent
perpendicular
diagonals
congruent diagonals
diagonals bisect
angles
diagonals bisect each
other
Part 2: Classify Quadrilaterals
Work through the Classify Quadrilaterals script. Copy the picture of the final script. Hand in the picture.
Part 3: Midsegments

Triangle
o Work through the script and answer the following question.
o Question
D, E and F are midpoints.
(a) What kind of quadrilateral is DBEF?
(b) What kind of quadrilateral is DECA?
(c) If we want to make DBEF a rectangle, then we must
change ABC into a what kind of triangle?
(d) If we want to make DBEF a square, then we must
change ABC into a what kind of triangle?
(e) If DF = 4, find the length of BE and BC.
(f) If BDE  87o , find BAC , DEF and AFE .
(g) If the area of quadrilateral DBCF is 12 cm2, what is the area of ABC ?
1
C Chan, 2011
Kite
Grade 9

Geometry Assignment
Quadrilateral
Work through the script and complete the following table.
Quadrilateral
Midsegments form a
general
trapezoid
isosceles trapezoid
parallelogram
rectangle
square
kite
2
C Chan, 2011
NTCI