Math Problem Statement
Solution
Let's analyze each of the shapes and calculate their areas. I'll address them one by one:
Top Row:
-
Shape 1 (Left - Trapezoid/Composite Shape)
- Given: 4 yd width, height is split into 3 yd and 2 yd.
- It appears to be a trapezoid, or a combination of a rectangle and a triangle.
- The area provided is 16 yd², which matches.
-
Shape 2 (Middle - Rectangle with Semi-Circle)
- Given: 12 ft width, 9 ft height, and a semi-circle with a radius of 4 ft.
- The area is calculated as:
- Area of the rectangle: ft²
- Area of the semi-circle: ft²
- Total area: ft².
- The area provided is 133.1 ft², which matches.
-
Shape 3 (Right - Triangle)
- Given: Base = 16 ft, Height = 8 ft.
- Area calculation:
- The area box is empty, so 64 ft² is the correct answer.
Bottom Row:
-
Shape 4 (Left - Trapezoid)
- Given: Height = 14 m, bases are 14 m and 7 m.
- Area calculation:
-
Shape 5 (Middle - Rectangle with Semi-Circle)
- Given: Width = 11 cm, semi-circle with radius 4 cm.
- Area calculation:
- Area of the rectangle: cm²
- Area of the semi-circle: cm²
- Total area: cm².
-
Shape 6 (Right - Composite Shape: Triangle + Semi-Circle)
- Given: Triangle base = 9 in, height = 19 in, semi-circle radius = 9 in.
- Area calculation:
- Area of the triangle: in²
- Area of the semi-circle: in²
- Total area: in².
Final Answers:
- 16 yd²
- 133.1 ft²
- 64 ft²
- 147 m²
- 69.1 cm²
- 212.7 in²
Would you like further explanations or details about any of these calculations?
Here are five related questions for further practice:
- How would the area change for the triangle if its height was increased by 50%?
- What is the area of a circle with a radius of 5 meters?
- If the trapezoid's bases were swapped in the first shape, would it affect the area calculation?
- How do you calculate the area of a quarter-circle?
- What is the perimeter of the rectangle and semi-circle composite shape?
Tip: When dealing with composite shapes, calculate the area of each part separately and then add them up to find the total area.
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Math Problem Analysis
Mathematical Concepts
Area Calculation
Composite Shapes
Geometry
Formulas
Area of a rectangle: width × height
Area of a triangle: 1/2 × base × height
Area of a trapezoid: 1/2 × (base1 + base2) × height
Area of a circle: π × radius^2
Theorems
Area calculation for composite shapes
Suitable Grade Level
Grades 8-10
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