alleryStart learning →A right triangle has legs of 1 cm each. Its hypotenuse is
Asqrt(3) cm
B1 cm
C2 cm
Dsqrt(2) cm
Answer & Solution
Correct answer: D. sqrt(2) cm
1. Apply a^2 + b^2 = c^2 with a = b = 1.
2. c^2 = 1 + 1 = 2.
3. c = sqrt(2) cm.
4. So option A is correct.
_Source: Selina Concise Mathematics Class 9, Ch on Pythagoras Theorem (Mistral OCR'd PDF), section on simple case_
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