The diagram shows a plan of two adjoining rooms.Some of the lengths and the areas are given. What is the perimeter of the combined shape?
Select one option, then click Submit.
36 m
38 m
41 m
42 m
45 m
Select an option, then submit.
Sign in or create an account to reveal answers, view the solution, and save your progress. Create a free account to unlock practice and keep track of your work.
Primary Mathematics Challenge (2022)
One puzzle per day. Cryptarithm, Magic Square, Summit. No sign-up required to play.
Play daily puzzle →Interactive problems and curated lessons—water pouring, magic squares, knight's tour, and more.
Browse library →See how you rank. Top solvers by problems solved correctly. Sign in to climb the ranks.
View leaderboard →Primary Mathematics Challenge (2022)