Tiga perempat lingkaran dgn jari jari 14 cm maka sekelilingnya

k = 2.π.r
=
[tex]2 \times \frac{22}{7} \times 14 \times \frac{3}{4} [/tex]

diketahui : r = 14 cm ; d = 2×r = 2×14 = 28

ditanya : keliling?

jawab :

keliling 3/4 lingkaran = 3/4 × 22/7 × d
= 3/4 × 22/7 × 28
= 66 cm
keliling total = keliling 3/4 lingkaran + r + r
= 66 + 14 + 14
= 94 cm

semoga membantu ^_^