alleryଏକ ରମ୍ବସରେ 16 ସେମି ଏବଂ 30 ସେମି ବିଶିଷ୍ଟ ଡାଇଗୋନାଲ୍ ଅଛି | ଏହାର କ୍ଷେତ୍ର ଏବଂ ପରିସୀମା କ’ଣ?
A240 cm²; 64 cm
B480 cm²; 68 cm
C480 cm²; 92 cm
D240 cm²; 68 cm
Answer & Solution
Correct answer: D. 240 cm²; 68 cm
କ୍ଷେତ୍ର ହେଉଛି 16×30/2 = 240 ସେମି ²;
ପର୍ପେଣ୍ଡିକୁଲାର୍ ଅର୍ଦ୍ଧ-ଡାଇଗୋନାଲ୍ ଗୁଡିକ 8 ଏବଂ 15, ପ୍ରତ୍ୟେକ ପାର୍ଶ୍ୱ 17 ଏବଂ ପରିସୀମା 68 ସେମି |
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