alleryहें . 30 m बाय 20 m बागे भोंवतणी एकसारको भायलो मार्ग 216 m² व्यापता; ताची रुंदाय?
A3 m
B1 m
C4 m
D2 m
Answer & Solution
Correct answer: D. 2 m
हें .
रुंदायेखातीर x, (30 + 2x)(20 + 2x) − 600 = 216 दिता
(x − 2)(x + 27) = 0, म्हणून x = 2 मी.
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