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a= x b
a + b = 10
b + b = 10,
faktorkan b,
b ( + 1) = 10
b () = 10
b = x 10
= x 10
= x 10
=
=
= 10 - 20
= 24,5 - 20
= 4,5cm
mencari a = 10-b
= 10 - 4,5 = 5,5cm atau dngn cara yang sama
a =
2. mirip juga
a = x 6
b = x 6