( pakai cara lengkap ya )

( pakai cara lengkap ya )

30 Cm +20 Cm +18 Cm : 68 Cm

$ts {}^{2} = tr {}^{2} - sr {}^{2} \ ts {}^{2} = 30 {}^{2} - 18 {}^{2} \ ts {}^{2} = 900 - 324 \ ts = sqrt{900 - 324} \ ts = sqrt{576} \ ts = 24$
K=TS+SR+RO+OP+PT
K=24+18+20+30+20
K=112 CM

pt=or

maaf kalo salah