It looks like you've uploaded an image that contains a
chart of perimeter and area formulas for common geometric shapes. However, there is
no specific problem or task presented in the image — it's just a reference table.
Here’s what the chart includes:
| Shape | Name | Perimeter Formula | Area Formula |
|--------------|----------------|------------------------|----------------------|
| 🔲 | Square | \( 4a \) | \( a^2 \) |
| 🔲 | Rectangle | \( 2(a + b) \) | \( ab \) |
| 🔺 | Triangle | \( a + b + c \) | \( \frac{ch}{2} \) |
| 🔷 | Parallelogram | \( 2(a + b) \) | \( bh \) |
| 🔶 | Rhombus | \( 4a \) | \( \frac{cd}{2} \) |
| 🔹 | Trapezoid | \( a + b + c + d \) | \( \frac{(b + d)h}{2} \) |
| 🪄 | Kite | \( 2(a + b) \) | \( \frac{cd}{2} \) |
| ⭕ | Circle | \( 2\pi r \) | \( \pi r^2 \) |
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Explanation of Formulas:
1.
Square:
- All sides are equal: \( a \)
- Perimeter = \( 4a \)
- Area = \( a^2 \)
2.
Rectangle:
- Sides: length \( a \), width \( b \)
- Perimeter = \( 2(a + b) \)
- Area = \( ab \)
3.
Triangle:
- Sides: \( a, b, c \); height \( h \) from base \( c \)
- Perimeter = sum of all sides
- Area = \( \frac{\text{base} \times \text{height}}{2} = \frac{ch}{2} \)
4.
Parallelogram:
- Base \( b \), height \( h \), side lengths \( a, b \)
- Perimeter = \( 2(a + b) \)
- Area = \( bh \)
5.
Rhombus:
- All sides equal: \( a \)
- Diagonals: \( c \) and \( d \)
- Perimeter = \( 4a \)
- Area = \( \frac{c \cdot d}{2} \)
6.
Trapezoid:
- Two parallel bases: \( b \) and \( d \), height \( h \), other two sides \( a, c \)
- Perimeter = sum of all sides
- Area = \( \frac{(b + d)h}{2} \)
7.
Kite:
- Two pairs of adjacent equal sides: \( a, a \), \( b, b \)
- Diagonals: \( c \), \( d \)
- Perimeter = \( 2(a + b) \)
- Area = \( \frac{c \cdot d}{2} \)
8.
Circle:
- Radius \( r \)
- Perimeter (Circumference) = \( 2\pi r \)
- Area = \( \pi r^2 \)
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Possible Use Case:
This chart is likely meant to be a
study guide or reference tool for students learning geometry. It helps them quickly recall formulas for different shapes.
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If you have a
specific problem involving one of these shapes (e.g., "Find the area of a rectangle with length 5 and width 3"), please provide it, and I’ll solve it step-by-step using this chart!
Let me know how I can help further! 😊
Parent Tip: Review the logic above to help your child master the concept of area of all shapes.
