Luas sebuah trapesium 480cm2 jika tinggi trapesium tersebut 24cm dan panjang salah satu garis sejajarnya 26cm .berapakah panjang dari garis sejajar yg lain
anggita5198
480 = 1/2 (26 + x ) . 24 480 = 12 ( 26 + x ) 40 = 26 + x x = 40-26 = 14 cm
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NadyaC
Luas = 1/2 x JSS X t 480cm2 = 1/2 x (26cm x SS II) X 24cm 480cm2 = (26cm x SS II) X12cm 480cm2 = 26cm x SS II 480cm2 : 12 cm = 26cm x SS II 40cm = 26cm x SS II SS II = 40cm - 26cm = 14cm
480 = 12 ( 26 + x )
40 = 26 + x
x = 40-26 = 14 cm
480cm2 = 1/2 x (26cm x SS II) X 24cm
480cm2 = (26cm x SS II) X12cm
480cm2 = 26cm x SS II
480cm2 : 12 cm = 26cm x SS II
40cm = 26cm x SS II
SS II = 40cm - 26cm
= 14cm