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Head First 2D Geometry by Dawn Griffiths, Stray

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uh oh…
The people behind the drinks stall won’t see the stage…
The engineers have started setting up, and now that the
drink stand is in place, your buddies realize that it blocks
the view for whoever will be standing behind it.
T
he people in this ar
ea
can’t see the s
tage.
Drinks/merch stall
8m
15m
Stage
this
end
Great
show!
Hey! I
can’t see!
Hey! I
can’t see!
This
sucks!
If they can’t see the
show they’r
e gonna
w
ant their money back!
190 Chapter 4
triangle properties
Oh, no! We’re gonna
have to give refunds to people
who get stuck in that area.
Or rope it off and sell fewer
tickets....
C
hr
is
T
om
Ben
Dav
e
Tom: Ugh. How many refunds?
Dave: I don’t know…we’d need to work out how many
people are in that area behind the screen.
Ben: Can’t we do something else? People are gonna be
so disappointed!
Chris: And it means less cash as well—which means
we’ll have less to split between us all!
Tom: I guess we could hire a giant screen maybe? But I
bet they are way expenisve.
Dave: But we’ll lose money if we give refunds
anyway—so anything less than that amount is worth it,
yes?
If you had to give refunds to all the people in that area, how much
would it cost you? (1 person per 2 square meters and $10 a ticket.)
you are here 4 191

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