Respuesta:
− ● − ● ● ● ● ● − ● − ● ● ● ● ●
1.
cd = 4
ad = 20
ac = ad − cd = 20 − 4 = 16
ab = bc
x = bc = ac / 2 = 16 / 2 = 8
2.
α = x + 5°
β = x + 20°
φ = 4x + 10°
θ = 100° − x
α + β + φ + θ = 360°
x + 5° + x + 20° + 4x + 10° + 100° − x = 360°
x + x + 4x − x = 360° − 5° − 20° − 10° − 100°
5x = 225°
x = 225°/5
x = 45°
θ = 100° − 45°
θ = 55°
− − − ● − − − − − ● − − ●
Explicación paso a paso:
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Respuesta:
− ● − ● ● ● ● ● − ● − ● ● ● ● ●
1.
cd = 4
ad = 20
ac = ad − cd = 20 − 4 = 16
ab = bc
x = bc = ac / 2 = 16 / 2 = 8
2.
α = x + 5°
β = x + 20°
φ = 4x + 10°
θ = 100° − x
α + β + φ + θ = 360°
x + 5° + x + 20° + 4x + 10° + 100° − x = 360°
x + x + 4x − x = 360° − 5° − 20° − 10° − 100°
5x = 225°
x = 225°/5
x = 45°
θ = 100° − x
θ = 100° − 45°
θ = 55°
− − − ● − − − − − ● − − ●
Explicación paso a paso: