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You can't find the exact area of of most shapes with a grid, but you can get a pretty good approximation with the following method:
1) Count the number of squares completely inside the shape. Let's call this number X.
2) Count the number of squares that are partially inside the shape (squares with the shape's outline passing through them). We'll call this number Y.
3) A = X + 0.5Y
The answer is in squares, so you need to know the grid spacing if you want to convert to inches or something. Remember, this isn't exact. The smaller the squares, the better the results.
If you need to be really accurate, try the following:
4) Repeat steps 1 - 3 for a bunch of different grid sizes (e.g. 1", 0.5", 0.25". 0.125", etc.).
5) Graph the results from step 4 as Area vs. Grid Size.
6) Draw an approximate curve through the points you graphed, and estimate the asymptote as Grid Size approaches infinity. Carefully cut out the figure and mass it on a good balance. Cut out a square or rectangle of about the same size as the figure from the same grid paper and carefully mass it on the balance. You can then calculate the mass per grid square or mass per unit area. Divide the mass of the figure by mass per unit area and you have the area.
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How do you find the area of a grid?
You multiply the height by the length.
What is the four figure grid reference of old Harry rocks?
a 4 figure grid refrence of old harry rock
What are the disadvantages to four figure grid reference?
The disadvantages of four figure grid references are 1 grid reference is 10 2 is 10 3 is 30 and 4 goes to 400..
What is the area of a grid 12cm by 7 cm?
The area of a 12 by 7 grid is 84.
What is the four figure grid reference for Paris?
2345
How do you find the six figure grid reference?
Six figure grid reference can be find by first measuring eastings and than northings.
What is the difference between a 4 and 6 figure grid reference?
The difference is that the 4 figure grid map is used for roughly the place that is located in the map while a 6 figure grid is used to find the exact location on the map. So when there's a need to find the exact location use the 6 figure grid instead of the 4 figure grid map.(:
How do you explain 4 figure grid references?
expkain how four figure grid references are used to find places on map
When finding the perimeter of a figure on a grid why do you not count the spaces inside the grid?
That's because "perimeter" means the distance around something - not the spaces inside. If you count squares inside a figure, you are finding the AREA, not the PERIMETER.
What are some strategies for finding the area of a figure drawn on a grid?
Count the number of grid squares which are entirely or almost entirely inside the figure = ACount the number of grid squares which are approximately half (or more) inside = B Estimated area = A + B/2.
Why do you use a six figure grid reference?
We use a six figure grid reference because it is more detailed and it will be better if you want to find the exact position of a place.
How do you find the area of a grid?
You multiply the height by the length.
What is the aim of four figure grid reference?
to be able to draw 4 figure grid reference
A trapezoid is shown on the grid. Which expression can be used to find the area of the trapezoid?
answer
Explain How would you find a location using a grid system?
its got to be by using the linear scale
What is a 6 figure grid references?
A 6-figure grid reference is a system used to pinpoint a location on a map using 6 digits, with each pair of digits representing a more precise grid square. The first three digits indicate the easting (horizontal) coordinate and the last three digits indicate the northing (vertical) coordinate within that grid square.
What is a six figure grid reference?
A six figure grid reference is a more detailed type of grid reference. Basically you divide the squares into 100 smaller squares then write a three figure easting then a three figure northing all you really have to do is take away the decimal point
