Q:

This figure is made up of a rectangle and parallelogram.What is the area of this figure?Enter your answer in the box. Do not round any side lengths.

Accepted Solution

A:
The area of the figure is 40 units. (rounded off from 39.998 units)Step-by-step explanation:1. Area of the figure = Area of Rectangle + Area of Parallelogram.2. Naming points:Let the rectangle consist of points A(-6,-1), B(-5,-5), C(3,-3) and D(2,1).Let the parallelogram consist of points C(3,-3), D(2,1), E(2,7) and F(3,3).3. Each coordinate has a point on the x-axis and a point on the y-axis. We shall refer to these points as x', x'' ,x''' and so on corresponding to the x-axis values of A, B, C and so on in that order till F. For the y-axis points, we will name them in the series of y', y'', y''' and so on. In simple words, in A(-6,1), x' = -6; y' = -14. Formula for finding area:Area of a rectangle = length (l) Γ— width (w)Area of a parallelogram = base (b) x height (h)5. Finding area of the rectangle:l = AD = [tex]\sqrt{[x'''' - x']^{2} - [y'''' - y']^{2}}[/tex], i.e. AD = [tex]\sqrt{[2 - (-6)]^{2} - [1 - (-1)]^{2}}[/tex], i.e. AD = √68 = 8.246 (rounded to 3 decimals) = lNow, w = AB = [tex]\sqrt{[x'' - x']^{2} - [y'' - y']^{2}}[/tex], i.e. AB = [tex]\sqrt{[(-5) - (-6)]^{2} - [(-5) - (-1)]^{2}}[/tex], i.e. AB = √17 = 4.123 (rounded to 3 decimals) = wArea of rectangle = l x w = 8.246 x 4.123 = 33.998 units. 6. Finding area of the parallelogram: b = DE = 6 units (we can observe this from the graph, i.e. points from 1 to 7 on the y axis)h = Height is the line drawn perpendicular to the base from point F, which as we can see is 1 unit long. Hence, Area of parallelogram = b x h = 6 x 1 = 6 units.7. Now, adding both, we can arrive at the final answer.Area of the figure = Area of rectangle + Area of parallelogram,i.e. 33.998 units + 6 units = 39.998 units. (can be rounded off to 40 units)