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<P = =
PR =PS = 8 cm
RS = RQ + QS ; QS = RQ
= 3 + RQ
= 3 + 3 = 6 cm
b) <YZ = <XY = 7cm
<X = - <Y- <Z
= -
=
XZ = √ + √
= 7√2 cm
WZ = XZ - WX
= (7√2 - 4,9)cm
c) <L = <N =
<M = =
LM = MN = 9cm
LN = KN + KL ; KL=KN
= KN + KN = 2KN
= 2(8,2cm)
= 16,4cm
Semoga benar dan membantu serta bermanfaat :)