The area of the rectangle is given by the product of length and the
width of the rectangle.
Response:
- The area of the rectangle is 18 units²
How can the area of the rectangle plotted on a graph be found?
The coordinates of the vertices of rectangle ABCD are;
A(-4, -2), B(-2, -2), C(-2, 7), and D(-4, 7)
Required:
The area of rectangle ABCD
Solution:
The distance between sides that have the same x or y coordinates are
given by the difference between the other coordinates, as follows;
Length of AB = -2 - (-4) = 2
Length of BC = 7 - (-2) = 9
Length of CD = -2 - (-4) = 2
Length of AD = 7 - (-2) = 9
Therefore;
Length of the rectangle = 9 units
Width of the rectangle = 2 units
The area of a rectangle = Length × Width
The area, A, of the rectangle is therefore;
A = 9 units × 2 units = 18 units²
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