APDisPro

(-20, -120, 575.0)

FINDING DISTANCES FROM A GRAPH GRID

GRID WORK

Looking at the OLAP Grid Map, take a metric ruler and find out how many centimeters wide each 120 foot grid marker is. Write this out as 120 ft. = _________ cm, however many centimeters.

Now that you know how many centimeters are in a 120 ft. section of the grid, find the number of centimeters across the front porch stoop of the Palace Theater (-20, -40, 575).

We will call the distance across the front porch stoop P.
P is to be measured in feet.

(P in feet)

divided by

(Measured number of centimeters in Palace Theater's Front Porch Stoop.)

=

(120 feet)

divided by

(Measured number of centimeters in one length of Map Grid.)

What is the distance across the Palace Theater's Front Porch Stoop?

You may need to measure the distance in the y direction and find a scale for it that could be different than the x direction.

We made a group project out of this example by giving a different building or ride to each group to find the dimensions of their building or ride by working out the scale.

You may wish to make a copy of the coordinate map of OLAP (file name is: six9407.gif) then use your paint or graphics program to make the x match the y scale and to cut out the individual buildings or rides.

See the current SHOW in the PALACE THEATER!

Copyright © 1994 © 1996 with all rights reserved by
William V. Thayer, Mathematics Department
St. Louis Community College at Meramec
11333 Big Bend Blvd., St. Louis, MO 63122-5977
Telephone: 314 984 7866
Email: thayer@stl-online.net