1. Cone – Surface Area – Card Match
In this activity students work individually or in groups to
match questions and answers.
‘Quick Cut’ – Choose the questions/slides you wish to use and delete others.
Sets of questions can then be easily guillotined to save time.
One-sheet sets of cards are also included for students to cut out themselves.

2. Printing To print handouts from slides -
Select the slide from the left. Then click:
File > Print > ‘Print Current Slide’
To print multiple slides -
Click on a section title to highlight all those slides,
or press ‘Ctrl’ at the same time as selecting slides to
highlight more than one. Then click:
File > Print > ‘Print Selection’
To print double-sided handouts -
Highlight both slides before using ‘Print Selection’.
Choose ‘Print on Both Sides’ and ‘Flip on Short Edge’.

3. 𝑇𝑜𝑡𝑎𝑙 𝑆𝑢𝑟𝑓𝑎𝑐𝑒 𝐴𝑟𝑒𝑎=π𝑟𝑙+π𝑟2

4. How can we find
the slant height?

5. Half Answers

9. A
11 cm
6 cm
320.4 cm2
320.4 cm2
320.4 cm2
320.4 cm2
320.4 cm2
320.4 cm2
320.4 cm2
320.4 cm2

10. B
10 cm
7 cm
148.4 cm2
148.4 cm2
148.4 cm2
148.4 cm2
148.4 cm2
148.4 cm2
148.4 cm2
148.4 cm2

11. C
10 cm
8 cm
204.2 cm2
204.2 cm2
204.2 cm2
204.2 cm2
204.2 cm2
204.2 cm2
204.2 cm2
204.2 cm2

12. D
11 cm
14 cm
336.9 cm2
336.9 cm2
336.9 cm2
336.9 cm2
336.9 cm2
336.9 cm2
336.9 cm2
336.9 cm2

13. E
9 cm
3 cm
117.7 cm2
117.7 cm2
117.7 cm2
117.7 cm2
117.7 cm2
117.7 cm2
117.7 cm2
117.7 cm2

14. F
3 cm
5 cm
83.2 cm2
83.2 cm2
83.2 cm2
83.2 cm2
83.2 cm2
83.2 cm2
83.2 cm2
83.2 cm2

15. G
13 cm
12 cm
282.7 cm2
282.7 cm2
282.7 cm2
282.7 cm2
282.7 cm2
282.7 cm2
282.7 cm2
282.7 cm2

16. H
7 cm
4 cm
6 cm
289.0 cm2
289.0 cm2
289.0 cm2
289.0 cm2
289.0 cm2
289.0 cm2
289.0 cm2
289.0 cm2

17. tom@goteachmaths.co.uk Questions? Comments? Suggestions?
…or have you found a mistake!?
Any feedback would be appreciated .
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