alleryଏକ ତ୍ରିଭୁଜର କୋଣଗୁଡ଼ିକ 2:3:4 ଅନୁପାତରେ ଅଛି। ସବୁଠାରୁ ବଡ଼ କୋଣଟି କେତେ?
A70°
B80°
C60°
D90°
Answer & Solution
Correct answer: B. 80°
9 ଟି ଭାଗ ମିଶି 180 ଡିଗ୍ରୀ ହୁଏ, ତେଣୁ ପ୍ରତ୍ୟେକ ଭାଗ 20 ଡିଗ୍ରୀ ଏବଂ ସର୍ବବୃହତ କୋଣଟି ହେଉଛି 4 x 20 = 80 ଡିଗ୍ରୀ।
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