Where's the graph at? Did you forget to place?
9 because a squre has equal sizes and area is leignth times width and 3 x 3= 9
A line has no thickness, but it does have direction and infinite length.
A line has length but no width, making it a one-dimensional figure. A line is made up of a collection of points that can be stretched indefinitely in opposing directions.
Given the variety of geometries in modern mathematics, the idea of a line is directly related to how the geometry is described. For instance, a line in the plane is frequently defined in analytic geometry as the collection of points whose coordinates satisfy a given linear equation, but in a more abstract context, such as incidence geometry, a line may be an independent object, distinct from the collection of points that lie on it.
In cartesian plane the general equation of a line is given by :
y=mx+c where the slope is denoted by m and the y-intercept by c.
To learn more about a straight line:
brainly.com/question/17188072
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Answer:</h2>
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Step-by-step explanation:</h2>
A rectangle is a quadrilateral whose angles are all right angles. In this problem, we have a rectangle whose height 
and whose area is 
. We don't know the other side of the rectangle, but let's call it 
. So the area of a rectangle is:
The perimeter is the distance around a shape in two dimensions. For our rectangle, our perimeter is:
So our goal is to find . From the equation of the area:
If we substitute both this value and the height in the equation of the perimeter we get:
