Math · Age 10 · Measurement
Perimeter of Complex Shapes (Ex. 3)
Perimeter problems involving rectilinear shapes.
Module
Measurement
Age
Age 10
Duration
10 min
Questions
5
What's in this exercise
Answers are hidden — sign up to practise and check your work.
Question 1
Multiple choice
A rectilinear shape has sides: 5, 3, 2, 1, 3, 2 cm. What is its perimeter?
Question 2
Multiple choice
A path has sides: 12 m, 8 m, 5 m, 4 m, 7 m, 4 m. What is its perimeter?
Question 3
Multiple choice
A shape has perimeter 50 cm. Five known sides total 37 cm. What is the missing side?
Question 4
Sequence
Sides of a polygon: 2, 4, 6, ___, 10 cm. Missing side (in a pattern +2).
Question 5
True or false
To find a missing side length, subtract the sum of known sides from the total perimeter.