5dregensleyerGambar 1 : d = 10 maka r = 5 Keliling 1/4 lingkaran = 2 x phi x r x 1/4 = =7,84 Keliling 3/4 lingkaran = 2 xphi x r x 3/4 = 2 x 3,14 × 5 × 3/4 = 23,55
= 51,39
Gambar 2 : Keliling 1/2 lingkaran = = = 22 Keliling seluruh = 14+14+14+22 = 64
Keliling 1/4 lingkaran : 3,14 × 10 × 1/4 :7,85 cm
Keliling 3/4 lingkaran : 3,14 × 10× 3/4 : 23,55 cm
Keliling seluruh : 5+5+5+5+7,85+23,55
: 51,4 cm
Gambar 2 :
Keliling 1/2 lingkaran : × 14 ×1/2
: 22 cm
Keliling seluruh : 14+14+14+22
: 64 cm
#maafjikasalah
d = 10 maka r = 5
Keliling 1/4 lingkaran = 2 x phi x r x 1/4
=
=7,84
Keliling 3/4 lingkaran = 2 xphi x r x 3/4
= 2 x 3,14 × 5 × 3/4
= 23,55
= 51,39
Gambar 2 :
Keliling 1/2 lingkaran =
=
= 22
Keliling seluruh = 14+14+14+22
= 64