To solve the problem of finding the perimeter of L-shaped figures, we need to carefully analyze each shape and calculate the total length of its outer boundary. Here's a step-by-step explanation for each figure:
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General Approach:
1. Identify all the outer edges of the L-shape.
2. Add up the lengths of all these outer edges.
3. Ensure that no edge is counted more than once.
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Solutions for Each Figure:
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Figure 1:
- Dimensions: Top = 11 cm, Left = 7 cm, Bottom = 4 cm, Right = 11 cm
- Perimeter = Top + Left + Bottom + Right = 11 + 7 + 4 + 11 = 33 cm
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Figure 2:
- Dimensions: Top = 11 mm, Left = 5 mm, Bottom = 3 mm, Right = 10 mm
- Perimeter = Top + Left + Bottom + Right = 11 + 5 + 3 + 10 = 29 mm
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Figure 3:
- Dimensions: Top = 11 ft, Left = 3 ft, Bottom = 3 ft, Right = 11 ft
- Perimeter = Top + Left + Bottom + Right = 11 + 3 + 3 + 11 = 28 ft
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Figure 4:
- Dimensions: Top = 7 m, Left = 3 m, Bottom = 7 m
- Perimeter = Top + Left + Bottom = 7 + 3 + 7 = 17 m
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Figure 5:
- Dimensions: Top = 12 m, Left = 5 m, Bottom = 9 m, Right = 5 m
- Perimeter = Top + Left + Bottom + Right = 12 + 5 + 9 + 5 = 31 m
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Figure 6:
- Dimensions: Top = 2 in, Left = 7 in, Bottom = 4 in, Right = 8 in
- Perimeter = Top + Left + Bottom + Right = 2 + 7 + 4 + 8 = 21 in
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Figure 7:
- Dimensions: Top = 6 yd, Left = 3 yd, Bottom = 10 yd
- Perimeter = Top + Left + Bottom = 6 + 3 + 10 = 19 yd
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Figure 8:
- Dimensions: Top = 6 yd, Left = 3 yd, Bottom = 7 yd, Right = 2 yd
- Perimeter = Top + Left + Bottom + Right = 6 + 3 + 7 + 2 = 18 yd
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Figure 9:
- Dimensions: Top = 10 mm, Left = 3 mm, Bottom = 4 mm, Right = 12 mm
- Perimeter = Top + Left + Bottom + Right = 10 + 3 + 4 + 12 = 29 mm
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Figure 10:
- Dimensions: Top = 11 in, Left = 4 in, Bottom = 3 in, Right = 8 in
- Perimeter = Top + Left + Bottom + Right = 11 + 4 + 3 + 8 = 26 in
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Final Answers:
1.
33 cm
2.
29 mm
3.
28 ft
4.
17 m
5.
31 m
6.
21 in
7.
19 yd
8.
18 yd
9.
29 mm
10.
26 in
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Boxed Final Answer:
\[
\boxed{33 \text{ cm}, 29 \text{ mm}, 28 \text{ ft}, 17 \text{ m}, 31 \text{ m}, 21 \text{ in}, 19 \text{ yd}, 18 \text{ yd}, 29 \text{ mm}, 26 \text{ in}}
\]
Parent Tip: Review the logic above to help your child master the concept of area perimeter irregular shapes worksheet.
