allery30 ಮೀ 20 ಮೀ ಉದ್ಯಾನವನದ ಸುತ್ತಲೂ ಏಕರೂಪದ ಹೊರ ಮಾರ್ಗವು 216 m² ಆವರಿಸುತ್ತದೆ; ಅದರ ಅಗಲ?
A3 m
B1 m
C4 m
D2 m
Answer & Solution
Correct answer: D. 2 m
ಅಗಲ x ಗೆ, (30 + 2x) (20 + 2x) - 600 = 216 ನೀಡುತ್ತದೆ (x - 2) (x + 27) = 0, ಆದ್ದರಿಂದ x = 2 ಮೀ.
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