Question

Jika panjang AB= (6×-31) cm, CD= (3×-1)cm, dan BC= (2×+3) cm, panjang AD=

Answer 1

AB = CD
6x -31 = 3x -1
6x -3x = -1 +31
3x = 30
x = 30:3
x= 10

BC = AD
2x + 3 = AD
2(10) + 3 = AD
20 + 3 = AD
23 =AD
AD = 23

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