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A rhombus has diagonals 16 cm and 12 cm. The side of the rhombus is
A8 cm
B14 cm
C10 cm
D20 cm
Answer & Solution
Correct answer: C. 10 cm
1. Rhombus diagonals bisect at 90 degrees.
2. Half-diagonals are 8 cm and 6 cm.
3. Side^2 = 8^2 + 6^2 = 64 + 36 = 100.
4. Side = 10 cm.
_Source: Selina Concise Mathematics Class 9, Ch on Pythagoras Theorem (Mistral OCR'd PDF), section on rhombus_
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