Given probabilities P(A) AND P(B) are independent, the probability that both events to occur is given by: P(A)∩P(B) thus from the example, independent events will be: P(blue)=70%, P(green)=30%, P(blue and green)=21% Because: P(blue)∩P(green)=0.7×0.3=0.21=21%
The answer is true; because if a triangle had more than one obtuse angle it would become like a rhombus or something else so it is not possible to remain a triangle and have more than one obtuse angle c:
