Question detail
reasoning check: a right-angled triangle has shorter sides 3 cm and 4 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. 5
- B. 9
- C. 1
- D. 10
Answer
The correct answer is 5.
Explanation
Trace the calculation before choosing. The verified method for Pythagoras and trigonometric ratios gives 5; no later explanation is allowed to change that value. This Pythagoras example is tied to a right-angled triangle and the hypotenuse.
Common mistake
Pythagoras and trigonometric ratios common mistake 1
Writing a final answer without showing the method that justifies it. This can weaken answers for: [Foundation and Higher] Know and apply Pythagoras' theorem and the trigonometric ratios to find angles and lengths in right-angled triangles in two-dimensional figures..
Show the method first, then give the final answer in the required form. Apply this directly to Pythagoras and trigonometric ratios. For Pythagoras, confirm the triangle is right-angled and identify the hypotenuse.
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