Question detail
calculator check: a right-angled triangle has shorter sides 4 cm and 5 cm. Find the hypotenuse.
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. 6.403
- B. 8.403
- C. 4.403
- D. 12.806
Answer
The correct answer is 6.403.
Explanation
calculator check uses Sine and cosine rules: identify the quantities, do the stated operation, and select 6.403 because it matches the verified final answer. This Pythagoras example is tied to a right-angled triangle and the hypotenuse.
Common mistake
Sine and cosine rules common mistake 1
Writing a final answer without showing the method that justifies it. This can weaken answers for: [Higher only] Know and apply the sine rule and cosine rule to find unknown lengths and angles..
Show the method first, then give the final answer in the required form. Apply this directly to Sine and cosine rules.
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