3D objects can be viewed as 2D objects when viewed from different angles. For the following questions, draw a 2D aerial view of how you would see the set of blocks below (ie: if you looked down from above).
Draw or write a sequence of flips, slides or turns required to make the first shape look like the second.
Teacher Discretion - many possible solutions
1
o
turn 180
flip
Answer:
e
Describe another way to achieve the same as question d. You may also draw your answer.
as above
Answer:
f
Explain the difference between rotational and line symmetry.
Teacher Discretion Line symmetry occurs when the object looks the same as a reflection or fold on itself. Rotational symmetry occurs when the object can be rotated on its central axis and still look the same. Answer: ACMMG181
Describe and draw two ways in which the angles between the transversal and horizontal lines would indicate the lines are parallel.
Students can describe any two of the following: o Cointerior angles add to 180 Alternate angles are equal Corresponding angles are equal Teacher discretion Answer:
h
Describe and draw two ways in which the angles between the transversal and horizontal lines would indicate the lines are NOT parallel.
Students should demonstrate understanding that if any of the above (g) are not true, then the lines are NOT parallel. Teacher discretion Answer: ACMMG163/164
