Math Problem Statement
What is the area of this L-shaped figure?
Solution
The figure in the image is an L-shaped polygon, and we can find the area by breaking it into two rectangles. Here's how we can do it:
Step 1: Divide the figure into two rectangles.
-
Rectangle 1: The top horizontal part of the L-shape.
- Width:
- Height:
- Area of Rectangle 1:
-
Rectangle 2: The vertical part of the L-shape.
- Width: (same as the width of the lower vertical strip)
- Height: (but part of it is cut out by Rectangle 1)
- Height to consider:
- Area of Rectangle 2:
Step 2: Add the areas of both rectangles.
- Total area =
Thus, the area of the figure is 52 square centimeters.
Would you like more details or have any questions?
Here are five related questions to expand your understanding:
- How would the area change if the height of the vertical section was increased by 2 cm?
- Can you calculate the perimeter of this L-shaped figure?
- How can the area be calculated if the L-shape was rotated by 90 degrees?
- What is the formula for the area of a composite shape like this?
- How would you calculate the area if the shape were not rectangular but had slanted sides?
Tip: When dealing with composite shapes, breaking them into smaller rectangles or known shapes makes calculating areas much simpler.
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Math Problem Analysis
Mathematical Concepts
Geometry
Area of Composite Shapes
Formulas
Area of a Rectangle = Length × Width
Theorems
Decomposition of Composite Figures
Suitable Grade Level
Grades 5-7