alleryIf the sides about the right angle are 3k and 4k, the hypotenuse is:
A7k
B8k
C5k
D6k
Answer & Solution
Correct answer: C. 5k
1. Use the Pythagoras Theorem on the two legs.
2. The squares give 9k squared plus 16k squared, or 25k squared.
3. So the hypotenuse is 5k.
4. The answer is 5k.
_Source: syllabus Mathematics, Ch 8 'Introduction to Trigonometry'_
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