alleryଏକ ସମକୋଣୀ ତ୍ରିଭୁଜର ବାହୁଗୁଡ଼ିକ 1, √3 ଏବଂ 2 ଅଟେ। ବାହୁ 1 ର ସମ୍ମୁଖ କୋଣର କୋସାଇନ୍ (cosine) କେତେ?
A1/2
B1/√2
C√3/2
D1
Answer & Solution
Correct answer: C. √3/2
ଏକ 30-60-90 ତ୍ରିଭୁଜରେ 30 ଡିଗ୍ରୀ ସଂଲଗ୍ନ ବାହୁ କର୍ଣ୍ଣର √3/2 ଗୁଣ ଅଟେ।
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