alleryಹೆರಾನ್ನ ಸೂತ್ರದ ಪ್ರಕಾರ, 13, 14 ಮತ್ತು 15 ಸೆಂ.ಮೀ ಬದಿಗಳನ್ನು ಹೊಂದಿರುವ ತ್ರಿಕೋನದ ವಿಸ್ತೀರ್ಣ ಎಷ್ಟು?
A42 cm²
B168 cm²
C91 cm²
D84 cm²
Answer & Solution
Correct answer: D. 84 cm²
ಅರೆ-ಪರಿಧಿಯು 21, ಆದ್ದರಿಂದ ವಿಸ್ತೀರ್ಣವು 21 x 8 x 7 x 6 = 84 ಚದರ ಸೆಂಟಿಮೀಟರ್ಗಳ ವರ್ಗಮೂಲವಾಗಿದೆ.
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