Task 1 · easy
Triangle circumference
Calculate the circumference of the triangle with the sides 5 cm, 7 cm and 8 cm.
Hint and solution →Original practice tasks · Math · Class 4
Polygonal circuit — tasks with solutions
Start with the easier exercises and work your way up. Every task has a hint and a full step-by-step solution — try it on your own first, then unlock the solution and compare.
Easy
3
Medium
4
Hard
3
Task 2 · easy
Rectangular circuit
The rectangle is 7 cm and 4 cm. Calculate the perimeter.
Hint and solution →Task 3 · easy
Square circumference
The square's about five inches away. Calculate the perimeter.
Hint and solution →Task 4 · medium
Irregular polygon
The fivesome is 3 cm, 6 cm, 4 cm, 7 cm and 5 cm. Calculate the perimeter.
Hint and solution →Task 5 · medium
Hexagonal circuit with equal sides
The hexagon has six equal sides of 5 cm each. Calculate the perimeter.
Hint and solution →Task 6 · medium
The missing side of the triangle
The triangle has a circumference of 24 cm. Two sides are 7 cm and 9 cm. Calculate the third side.
Hint and solution →Task 7 · hard
The missing side of the rectangle
The rectangle has a circumference of 30 cm and one side of 9 cm. Calculate the other side.
Hint and solution →Task 8 · hard
Circuit after unit conversion
The rectangle has sides 1 m 20 cm and 80 cm. Calculate the circuit in meters.
Hint and solution →Task 9 · hard
Gate fence
The rectangular garden is 12 m long and 8 m wide. The 2 m wide gate does not require a fence. How many meters of grid do you need?
Hint and solution →Task 10 · medium
Circuit of irregular parcel
The parcel boundary consists of sections 6 m, 4 m, 2 m, 3 m, 4 m and 7 m. Calculate her perimeter.
Hint and solution →Karta pracy do druku
Ten sam temat w wersji na kartkę: instrukcja, zadania i miejsce na odpowiedzi. Wydruk jest bezpłatny.
Otwórz kartę pracy →After the tasks
Go from single tasks to a full set
Pick a ready-made material for this topic and grade, or generate a new set for more practice.