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BC=24x2/8=6
AC=24x1/8=9
2 L=1/2xaxt
90=1/2xax18
180=18xa
10=a
3. L=1/2xaxt
120= 1/2x30xt
120x2=30xt
4x2=t
t=8
24 = 5x + 2x + x
24 = 8x
x = 3
panjang AB = 5x = 5(3) = 15cm
panjang BC = 2x = 2(3) = 6cm
panjang AC = x = 3cm
2. luas = 1/2 x a x t
90 = 1/2 x a x 18
90 = 9a
a = 10cm
3. luas alas = 1/2 x a x t
120 = 1/2 x 30 x t
120 = 15t
t = 8cm
4. sama jwbnya kyk no 3