" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2025 KUDO.TIPS - All rights reserved.
= 15 cm
b = QR
= 12 cm
c = PR
= 9 cm
S = K : 2
= (a + b + c) : 2
= (15 + 12 + 9) : 2
= 36 : 2
= 18
L =
=
=
=
=
L = 1/2 × a × t
54 = 1/2 × 15 × t
54 = 15/2t
108 = 15t
7,2 = t
RS = t
= 7,2 cm
Jadi panjang RS adalah 7,2 cm (B).