Jawaban:
11. (i); (iii);(iv)
12. (3x+30)°+2x=180°
5x+30=180°
5x=180°-30°
5x=150°
x=150÷5 =30°
<POR= 3x+30
= 3×30+30
=90+30
=120°
13. 75.000× 100/125=
75.000× 4/5=
60.000
14. (432.000-90.000)÷30
=342.000÷30
=11.400
15. 1.500.000cm×6cm
=9.000.000cm
=90 km
semoga bermanfaat
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Jawaban:
11. (i); (iii);(iv)
12. (3x+30)°+2x=180°
5x+30=180°
5x=180°-30°
5x=150°
x=150÷5 =30°
<POR= 3x+30
= 3×30+30
=90+30
=120°
13. 75.000× 100/125=
75.000× 4/5=
60.000
14. (432.000-90.000)÷30
=342.000÷30
=11.400
15. 1.500.000cm×6cm
=9.000.000cm
=90 km
semoga bermanfaat