Page 73 - 01-Yr5_Front cover-ccp.indd

75
• Pyramid construction •
rn Decide how to copy ond co. _mplete IT>4-CYl1
~:I•I•l:f019~ ,, · ~ this net for a square pyramid 60,,_,
so that it matches the design
PAGE 64 below.
't l You need to set your compasses
to either a 4 cm or a 6 cm radius
Page 4 might help you
\~ 185ml 380ml 0·32l om
75ml
205ml
DJ Decide in which box each container belongs by following this decision tree.

[3_] • Score along the fold lines
• Fold the net up to make sure
it forms a pyramid
• Glue each tab in turn.

CHALLENGE
• True or false?
Bottles with a capacity of between 200 ml and 300 ml belong in box 5.
• Write true sentences for the other boxes. ~ • Design o different net for a congruent pyramid
• Glue the net in your book and give it a title.
j s~s5;32 1

Box 1: f Box 2: e Box 3: c Box 4: d Practical: copying and completing the net for a square pyramid and
constructing it.
Box 5: a Box 6: b Box 7: h Box 8: g
Challenge

True. Open: designing a different net for a congruent pyramid.
Bottles with a capacity greater than 500 ml belong in box 1.
Bottles with a capacity between 400 and 500 ml belong in box 2.
Bottles with a capacity between 350 and 400 ml belong in box 3.
Bottles with a capacity between 300 and 350 ml belong in box 4.
Bottles with a capacity between 100 and 300 ml belong in box 6.
Bottles with a capacity between 50 and 100 belong in box 7.
Bottles with a capacity less than 50 ml belong in box 8.