alleryHeron ଙ୍କ ସୂତ୍ର ଅନୁସାରେ, 13, 14 ଏବଂ 15 cm ବାହୁ ବିଶିଷ୍ଟ ଏକ ତ୍ରିଭୁଜର କ୍ଷେତ୍ରଫଳ କେତେ?
A42 cm²
B168 cm²
C91 cm²
D84 cm²
Answer & Solution
Correct answer: D. 84 cm²
ଅର୍ଦ୍ଧ-ପରିସୀମା ହେଉଛି 21, ତେଣୁ କ୍ଷେତ୍ରଫଳ ହେଉଛି 21 x 8 x 7 x 6 ର ବର୍ଗମୂଳ = 84 square centimetres।
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