For answers, turn to page 123.For more Brain
Games, go to
games.rd.com.The Missing Link
easy Two of the identical
rings in this pile are actually
linked together. Which two?Getting Started
easy These words
sometimes share a
first name. What is it?A drawing that has several spanning trees is called a forest. If a forest
has three trees and 27 lines in it, how many dots does it have?PET
SITE
CHUTE
LEGAL
MOUNT
PHRASEForest for the Trees
difficult A spanning tree (or just a tree, for short) is a diagram made of
dots and straight lines, in which every line goes between two dots, all the
dots are connected, and no lines connect with others to form closed loops.
Here are some examples:rd.com 119DA
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RI
GB
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TH
E^ M
ISS
IN
G^ L
IN
K^ A
ND
FO
RE
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FO
R^ T
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TR
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The Genius Section