Jawaban:
1)64°50'
=64°+0,5('→°)
=64°+0,5°
=64,5°{A}
2) 18° 21' 5"
8° 43' 7"
——— -
10° (-22') (-2")
=9° (60-22') (-2")
=9° 38' (-2")
=9° 37' (60-2")
=9° 37' 58"{B}
3)<AOB+<BOC+<COD=180°
(x-5)°+90°+(3x-1)° =180°
4x-6 =180°-90°
4x =90°-6
x =84°/4
x =21°
<AOC=<AOB+<BOC
=(x-5)°+90°
=(21-5)°+90°
=16°+90°
=106°{gaada di opsi jawaban}
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Jawaban:
1)64°50'
=64°+0,5('→°)
=64°+0,5°
=64,5°{A}
2) 18° 21' 5"
8° 43' 7"
——— -
10° (-22') (-2")
=9° (60-22') (-2")
=9° 38' (-2")
=9° 37' (60-2")
=9° 37' 58"{B}
3)<AOB+<BOC+<COD=180°
(x-5)°+90°+(3x-1)° =180°
4x-6 =180°-90°
4x =90°-6
x =84°/4
x =21°
<AOC=<AOB+<BOC
=(x-5)°+90°
=(21-5)°+90°
=16°+90°
=106°{gaada di opsi jawaban}
Maaf kalau salah, semoga membantu