Layang-layang KLMN diketahui luasnya 168 cm². Bila panjang diagonal KM = 24 cm dan LN = (2x + 4) cm, maka nilai x =

Kelas 8 Matematika
Bab Bangun Datar

Luas = 168
1/2 . d1 . d2 = 168
1/2 . 24 . (2x + 4) = 168
2x + 4 = 168/12
2x = 14 - 4
x = 10/2
x = 5 

luas = 168
1/2.d1.d2 = 168
1/2.24. (2×+4) =168
2×+4 = 168/12
2× = 14 - 4
x =10/2
x = 5


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