Question detail
method check: a rectangular display board has length 7 cm and width 5 cm. Find its perimeter.
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Mensuration and calculation
Question
- A. 24 cm
- B. 27
- C. 21
- D. 48
Answer
The correct answer is 24 cm.
Explanation
The distractors change the result or the form of the answer. The canonical solution reaches 24 cm, so 24 cm is the only option consistent with the working.
Common mistake
Circles and composite solids common mistake 1
Writing a final answer without showing the method that justifies it. This can weaken answers for: [Foundation and Higher] Calculate perimeters of two-dimensional shapes, including circles, and areas of circles and composite shapes..
Show the method first, then give the final answer in the required form. Apply this directly to Circles and composite solids.
Related flashcards
Flashcard 1 of 5
Related practice questions
Question 1 of 5
Choose an answer, get feedback, then move sideways through the set.