Question detail
method check: a rectangular display board has length 7 cm and width 5 cm. Find its area.
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Properties and constructions
Question
- A. 35 cm^2
- B. 35 cm
- C. 39 cm^2
- D. 31 cm^2
Answer
The correct answer is 35 cm^2.
Explanation
The distractors change the result or the form of the answer. The canonical solution reaches 35 cm^2, so 35 cm^2 is the only option consistent with the working.
Common mistake
Geometric reasoning and proof common mistake 1
Writing a final answer without showing the method that justifies it. This can weaken answers for: [Foundation and Higher] Apply angle facts, congruence, similarity and quadrilateral properties to conjecture and derive results about angles and sides..
Show the method first, then give the final answer in the required form. Apply this directly to Geometric reasoning and proof.
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