Ngle dca is 120°. what percent of the circle's area does this section represent?

Aparallel system functions whenever at least one of its components works. consider a parallel system of n components, and suppose each component works independently with probability 0.5. find the conditional probability that component n works given that the system is working

Given right triangle xyz, which correctly describes the locations of the sides in relation to

If chord ab is congruent to chord cd, then what must be true about ef and eg?