## Area and Perimeter of 2D Shapes Worksheet

This worksheet is designed to help students practice calculating the area and perimeter of different 2D shapes. It covers basic shapes like squares, rectangles, triangles, and circles, as well as some more complex shapes.

**Instructions:**

- Read each question carefully.
- Use the formulas provided to calculate the area and perimeter of each shape.
- Show your work in the space provided.
- Round your answers to the nearest tenth.

**Formulas:**

**Square:**- Area = side * side
- Perimeter = 4 * side

**Rectangle:**- Area = length * width
- Perimeter = 2 * (length + width)

**Triangle:**- Area = (base * height) / 2
- Perimeter = side1 + side2 + side3

**Circle:**- Area = π * radius²
- Perimeter = 2 * π * radius

**Worksheet:**

**Square:**- Side length = 5 cm
- Area:
- Perimeter:

**Rectangle:**- Length = 8 cm
- Width = 3 cm
- Area:
- Perimeter:

**Triangle:**- Base = 10 cm
- Height = 6 cm
- Side1 = 7 cm
- Side2 = 8 cm
- Side3 = 9 cm
- Area:
- Perimeter:

**Circle:**- Radius = 4 cm
- Area:
- Perimeter:

**Composite Shape:****Shape:**A rectangle with a semicircle on top**Dimensions:**Rectangle: length = 12 cm, width = 6 cm; Semicircle: radius = 3 cm**Area:****Perimeter:**

**Answer Key:**

**Square:**- Area: 25 cm²
- Perimeter: 20 cm

**Rectangle:**- Area: 24 cm²
- Perimeter: 22 cm

**Triangle:**- Area: 30 cm²
- Perimeter: 24 cm

**Circle:**- Area: 50.3 cm²
- Perimeter: 25.1 cm

**Composite Shape:****Area:**94.3 cm²**Perimeter:**36.8 cm

**Note:** This is just a sample worksheet and can be modified to include more challenging shapes and problems.