**WASHINGTON STATE MATHEMATICS COUNCIL**

**1997 MIDDLE SCHOOL MATH OLYMPIAD**

**SIXTH GRADE SPATIAL SENSE**

**SCHOOL ___________________________ TEAM_______ **

Don't forget units!

1). How many squares of any size can be made using the pegs of a 4 by
4 geoboard? Count squares in different positions on the board as different
squares. All of the pegs are equally spaced.

Answer:_________

2). This walkway is to be paved with bricks. Four bricks cover every
square foot. How many bricks will be needed?

Answer:_________

3). Two gears are interlocked with an arrow on each of them lining up
exactly. Gear A has 12 cogs and gear B has 15, and they turn in opposite
directions. How many times will gear A go completely around before the
2 arrows point at each other again?

Answer:_________

4). The drill team starts at one corner of the field shown, and marches
down the end-line and across one side. The band starts at the other corner
of the same field and marches diagonally across the field. How much farther
does the drill team march?

Answer:_________

5). A child glues together 42 cubes with 1 cm edges to form a solid,
rectangular-faced brick. If the perimeter of the base is 18 cm, what is
the height of the brick, in cm?

Answer:_________