alleryଏକ ତ୍ରିକୋଣୀୟ ପତାକା ମୂଳ 18 ସେମି ଏବଂ ଉଚ୍ଚତା 10 ସେମି; ଏହାର କ୍ଷେତ୍ର କ’ଣ?
A45 cm²
B28 cm²
C90 cm²
D180 cm²
Answer & Solution
Correct answer: C. 90 cm²
ପତାକାର କ୍ଷେତ୍ରଫଳ ½ × 18 × 10 = 90 cm²।
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