I think that you draw a square from that line, and find the area of that square.
To find the perimeter of any shape, simply add the lengths of the individual line segments together. To find the length of an individual line segment (x1,y1)-(x2,y2) simply compute the square root of (x1-x2)2 + (y1-y2)2.
Count the dots
Use the Pythagorean Theorem.
4
i dont know
I think that you draw a square from that line, and find the area of that square.
You multiply the height by the length.
To find the perimeter of any shape, simply add the lengths of the individual line segments together. To find the length of an individual line segment (x1,y1)-(x2,y2) simply compute the square root of (x1-x2)2 + (y1-y2)2.
Count the dots
Since the perimeter is 18, the sum of the length and breadth is 18/2 units = 9 units. Draw a straight line on the grid of less than 9 units. At right angles to that line, draw another line so that the two lines have a combined length of 9 units. These two lines are the two adjacent lines of the rectangle. Use the grid to draw line parallel to these so that you have a rectangle.
Multiply length times width.
Use the Pythagorean Theorem.
grid line
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The coordinate grid.
coordinate grid