Penjelasan dengan langkah-langkah:
pc = 3,6 cm
cq = x
cj = y
qr = 4,2 cm
pj = 4 cm
jr = 3 cm
a. cari x
pj/pr = pc/pq
4/(4 + 3) = 3,6/(3,6 + x)
4(3,6 + x) = 3,6 x 7
14,4 + 4x = 25,2
4x = 25,2 - 14,4
4x = 10,8
x = 2,7 cm
b.cari y
pc/pq = cj/qr
3,6/(3,6 + 2,7) = y/4,2
4,2 x 3,6 = y . 6,3
15,12 = 6,3y
y = 15,12 : 6,3
y = 2,4 cm
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Penjelasan dengan langkah-langkah:
pc = 3,6 cm
cq = x
cj = y
qr = 4,2 cm
pj = 4 cm
jr = 3 cm
a. cari x
pj/pr = pc/pq
4/(4 + 3) = 3,6/(3,6 + x)
4(3,6 + x) = 3,6 x 7
14,4 + 4x = 25,2
4x = 25,2 - 14,4
4x = 10,8
x = 2,7 cm
b.cari y
pc/pq = cj/qr
3,6/(3,6 + 2,7) = y/4,2
4,2 x 3,6 = y . 6,3
15,12 = 6,3y
y = 15,12 : 6,3
y = 2,4 cm