Let’s solve each shape one by one. The perimeter is the total distance around the outside of a shape. We just add up all the side lengths!
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First row:
1.
Blue square (4 cm on each side)
All 4 sides are 4 cm.
Perimeter = 4 + 4 + 4 + 4 =
16 cm
2.
Orange rectangle (6 ft and 2 ft)
Two sides are 6 ft, two sides are 2 ft.
Perimeter = 6 + 2 + 6 + 2 =
16 ft
3.
Red triangle (all sides 8 inch)
All 3 sides are 8 inches.
Perimeter = 8 + 8 + 8 =
24 inch
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Second row:
4.
Green parallelogram (sides: 5 m, 3 m, 5 m, 3 m)
Opposite sides are equal.
Perimeter = 5 + 3 + 5 + 3 =
16 m
5.
Purple trapezoid (sides: 6 cm, 2 cm, 9 cm, 2 cm)
Add them all: 6 + 2 + 9 + 2 =
19 cm
6.
Blue right triangle (sides: 9 ft, 7 ft, 5 ft)
Just add all three sides: 9 + 7 + 5 =
21 ft
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Third row:
7.
Orange hexagon (all sides 9 cm)
It has 6 sides, each 9 cm.
Perimeter = 9 + 9 + 9 + 9 + 9 + 9 =
54 cm
Or: 6 × 9 = 54 cm
8.
Blue rectangle (sides: 7 m and 4 m)
Two sides 7 m, two sides 4 m.
Perimeter = 7 + 4 + 7 + 4 =
22 m
9.
Red triangle (sides: 12 ft, 12 ft, 10 ft)
Add them: 12 + 12 + 10 =
34 ft
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Final Answer:
16 cm, 16 ft, 24 inch, 16 m, 19 cm, 21 ft, 54 cm, 22 m, 34 ft
Parent Tip: Review the logic above to help your child master the concept of finding the perimeter worksheet.
