The perimeter of a closed shape can be defined as the total length of its outer boundary. Perimeter is the measure of distance we get after summing up the length of the boundary of a shape. The standard unit to measure the perimeter are miles, yards, feet, inches. And, kilometers, meters, and centimeters.
Perimeter of Quadrilateral | Sum of all the sides. |
Perimeter of Triangle | Sum of all the sides. |
Perimeter of Circle | πd=2πr |
Perimeter of Rectangle | 2 (l+w) |
Question 1: Find the perimeter of a rectangular object having a length of 10 cm, and a width of 4 cm.
Answer: 28 cm
Explanation: Use the perimeter of rectangle formula.
Question 2: Find the perimeter of the following shape:
Answer: 24 units
Explanation: Use the perimeter of rectangle formula.
Question 3: Calculate the perimeter of the following shape:
Answer: 10.5 units
Explanation: Use the perimeter of triangle formula.
Question 4: Find the perimeter of the circle having a radius of 3 in.
Answer: 6π in
Explanation: Use the perimeter of circle formula.
Question 5: The following figure shows the dimension of a triangular plot. Find the total cost of fencing, if available fence costs $3 per foot.
Answer: $41.1
Explanation: Use the perimeter of triangle formula.
Question 6: Find the width of a rectangular farm, if the perimeter is 250 yd, and the length is 70 yd.
Answer: 55 yd
Explanation: Use the perimeter of rectangle formula.
Question 7: Find the cost of fencing a circular ground having a diameter of 68 m. Given wire fencing costs $10 per meter. Use π=3.14. Round your answer to the nearest USD.
Answer: $2135
Explanation: Use the perimeter of circle formula.
Question 8: Find the length of a rectangular farm, if the perimeter is 315 m, and the width is 52.5 m.
Answer: 105m
Explanation: Use the perimeter of rectangle formula.
Question 9: Find the perimeter of the following shape:
Answer: 26 units
Explanation: Use the perimeter of triangle formula.
Question 10: Find the perimeter of the following shape:
Answer: 30 units
Explanation: Find the dimension of the outer boundary.
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