it is a matter of survival. ... The physical responses we have to objects or situations that we fear are often grouped and characterized as a “fight or flight” instinct. Something alarms you, and instantly your brain causes several chemicals to be released into your bloodstream.
the law of sines established a/sin A=b/sin B--------sin A=[a*sin B]/b a=4.5 cm b=6 cm B=35° so sin A=[4.5*sin 35°]/6-----> sin A=0.43018 A=arc sin(0.43018)-------> A=25.5°
