alleryଏକ କେନ୍ଦ୍ରସ୍ଥ କୋଣ 80° ଅଟେ। ସମାନ ଚାପ ଉପରେ ଅନ୍ତର୍ଲିଖିତ କୋଣ କେତେ?
A40°
B160°
C20°
D80°
Answer & Solution
Correct answer: A. 40°
ସମାନ ଚାପ ଉପରେ କେନ୍ଦ୍ରସ୍ଥ କୋଣ ଅନ୍ତର୍ଲିଖିତ କୋଣର ଦୁଇଗୁଣ, ତେଣୁ 80/2 = 40 degrees।
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