tambah pusing pusing deh

Bab Lingkaran

Langkah 1 : Mencari panjang busur AC
Panjang busur AC
= 200/360 × 2 × 22/7 × 7
= 5/9 × 22 × 2
= 220/9
= 24,44... cm

Langkah 2 : Mencari panjang busur BD
Panjang busur BD
= (360 - 200)/360 × 2 × 3,14 × 1
= 160/360 × 6,28
= 4/9 × 6,28
= 2,79... cm

Langkah 3 : Mencari panjang CD = AB (GSPL)
l^2 = p^2 - (R - r)^2
l^2 = 10^2 - (7 - 1)^2
l^2 = 100 - 36
l = √64
CD = AB = 8 cm

Panjang rantai
= 24,44 + 2,79 + 8 + 8
= 43,23 cm
Hasilnya mendekati B. 43,19 cm