sudut pusat : 60 jari-jari: 21 berapakah panjang busur
pakai cara :
panjang busur=(pusat/360°)×2×22/7×7
pakai cara :
panjang busur=(pusat/360°)×2×22/7×7
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
Panjang busur
[tex] \frac{ \alpha }{360} \times 2 \times \pi \times r \\ \\ \frac{60}{360} \times 2 \times \frac{22}{7} \times 21 \\ \\ 22 \: cm[/tex]
PB :
= 60/360(2(22/7(21)
= 1/6(2(22(21/7)
= 1/6(2(22(3)
= 1/6(2(66)
= 1/6(132)
= 132/6
= 22 CM