Here are the step-by-step solutions for each question on the worksheet.
1. What is the perimeter of the triangle?
To find the perimeter, add up the lengths of all three sides of the triangle.
* Side 1: 12
* Side 2: 5
* Side 3: 13
Calculation: $12 + 5 + 13 = 30$
2. What is the perimeter of the trapezoid?
Add the lengths of all four sides together.
* Top side: 9 cm
* Right side: 12 cm
* Bottom side: 14 cm
* Left side: 13 cm
Calculation: $9 + 12 + 14 + 13 = 48$ cm
3. What is the perimeter of the polygon?
Add the lengths of all five sides shown in the shape.
* Sides: 3, 4, 2, 3, 4
Calculation: $3 + 4 + 2 + 3 + 4 = 16$
4. What is the perimeter of this polygon?
Add the lengths of all five sides. Note that the unit is inches.
* Sides: 2", 3", 2", 7", 4"
Calculation: $2 + 3 + 2 + 7 + 4 = 18$ inches
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Final Answer:
1.
a. 30
2.
b. 48 cm
3.
b. 16
4.
a. 18 inches
Parent Tip: Review the logic above to help your child master the concept of perimeter of a polygon worksheet.
