Kak ini caranya gimana
A+C=265
A+B=261
kita eliminasikan
(A+C) – (A+B)= 265-261
A+C -A -B = 4
C – B = 4
C = 4+B
pada keterangan didapatkan
C+B= 274
(4+B)+B=274
2B = 274-4
2B= 270
B = 135 cm
C = 4+B
=4+135
= 139 cm
A+B = 261
A+135 = 261
A = 261-135
A = 126 cn
A+B+C
= 135+139+126
= 400 cm
JAWABAN : c