Math Problem Statement

A rectangle is shown below. Work out the coordinates of A.

Solution

The rectangle in the diagram has its vertices labeled with coordinates, and we need to determine the coordinates of point AA. From the diagram:

  • The coordinates of the top-right corner are (7,9)(7, 9).
  • The coordinates of the bottom-right corner are (7,4)(7, 4).
  • The coordinates of the bottom-left corner are (5,4)(-5, 4).

Observing the Geometry of the Rectangle

Since the rectangle has parallel sides, the x-coordinate of AA will match the x-coordinate of the bottom-left corner (5,4)(-5, 4), and the y-coordinate of AA will match the y-coordinate of the top-right corner (7,9)(7, 9).

Coordinates of AA:

A=(5,9)A = (-5, 9)

Would you like an explanation on how to verify this or details on using properties of shapes?


Here are 5 questions to explore the topic further:

  1. What is the formula for finding the area of a rectangle given the coordinates of its vertices?
  2. How can you find the length and width of a rectangle from the coordinates of its corners?
  3. What is the distance formula and how can it be applied to calculate the perimeter of a rectangle?
  4. How can you determine if a quadrilateral is a rectangle using its coordinates?
  5. Can the slope of sides be used to verify if a shape is a rectangle? How?

Tip: Always double-check your coordinate placement by reviewing alignment along the x and y axes!

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Math Problem Analysis

Mathematical Concepts

Geometry
Coordinates

Formulas

Coordinate alignment in rectangles

Theorems

Properties of rectangles (opposite sides are parallel)

Suitable Grade Level

Grades 6-8