Kąty alfa i beta tworzą razem kąt prosty.
Oblicz miarę kąta beta, jeśli:
a) alfa = 20o30'
b) alfa= 85o20'
c) alfa= 30o30'30''
d) alfa=10o30''
Podpowiedź: 1o=60'
1'=60''
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Kąt prosty to taki który ma 90°, zatem u nas
α + β = 90°
a)
α = 20°30'
α + β = 90°
20°30' + β = 90°
β = 89°60' - 20°30'
β = 69°30'
b)
α = 85°20'
α + β = 90°
85°20' + β = 90°
β = 89°60' - 85°20'
β = 4°40'
c)
α = 30°30'30''
α + β = 90°
30°30'30' + β = 90°
β = 89°59' 60'' - 30°30'30''
β = 59°29''30''
d)
α = 10°30''
α + β = 90°
10°30'' + β = 90°
β = 89°59' 60'' - 10°30''
β = 79°59''30''