536 Puzzles and Curious Problems

88 Geometrical Problems birthday present for one of its number. One of the contributors supplied a portion in the form of a perf ...

Triangle, Square, & Other Polygon Puzzles 89 It will be found interesting to discover such a triangle with the smallest poss ...

90 Geometrical Problems so Sir Hugh showed him our Figure B, which is quite correct. But he added, "I did not tell thee that the ...

Triangle, Square, & Other Polygon Puzzles 91 THREE TABLECLOTHS Mrs. Crackham at the breakfast table recently announced tha ...

92 Geometrical Problems BFC, and BGC, are six such triangles. It is not a difficult count if you proceed with some method, but o ...

Triangle, Square, & Other Polygon Puzzles 93 THE RUSSIAN MOTORCYCLISTS Two Army motorcyclists, on the road at Adjbkmlprzll ...

94 Geometrical Problems twelve miles from the road A to B-that is, to the point D, as shown by the dotted line. Whereupon the Ge ...

Triangle, Square, & Other Polygon Puzzles 95 CHOOSING A SITE A man bought an estate enclosed by three straight roads formi ...

96 Geometrical Problems .^7 .. \ ci···-·~ THE TRIANGULAR PLANTATION A man had a plantation of twenty- one trees set out in the ...

Circle Puzzles 97 THE THREE FENCES "A man had a circular field," said Crackham, "and he wished to divide it into four equal pa ...

98 Geometrical Problems SHARING A GRINDSTONE Three men bought a grindstone twenty inches in diameter. How much must each grind ...

Circle Puzzles 99 Now the inner circle (the large hub in the illustration) also makes one complete revolution along the imaginar ...

100 Geometrical Problems ANOTHER WHEEL PARADOX Two cyclists were resting on a railway bridge somewhere in Sussex, when a railw ...

Dividing-the-Plane Puzzles 101 stationary. Although the watchmaker took the machine away for careful examination, he failed to d ...

102 Geometrical Problems instructions in his will that each of his eight sons should receive the same amount of ground and the s ...

Dividing-the-Plane Puzzles 103 Il ~ Q • Q • Q q Ii q q Ii 12 " <i' q q Q fl Q • ~ Q SIX STRAIGHT FENCES A man had a small ...

104 Geometrical Problems DRAWING A STRAIGHT LINE If we want to describe a circle we use an instrument that we call a pair of c ...

Plane Geometry Puzzles 105 :. .. _.-............ _ ..... ----. A c wherein it will be observed that the distance from A to B is ...

106 Geometrical Problems Does the pig escape, or does Pat catch it? And if he catches it, exactly how far does the pig run? 308. ...

Solid Geometry Puzzles 107 is just one of those practical problems with which the soldier is faced from day to day when on activ ...