Matematika Bab Garis dan Sudut
Hitunglah nilai A, B, C Dan D pada gambar diatas!
Hitunglah nilai A, B, C Dan D pada gambar diatas!
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A)
6/(6+4)=8/(8+a)
6/10=8/(8+a)
6(8+a)=8×10
48+6a=80
6a=80-48
a=32/6
a=16/3 atau 5,3
B)
2/5=b/5+b
2(5+b)=5b
10+2b=5b
10=3b
10/3=b
b=3,3
C)
5/8=c/c+4
5(c+4)=8c
5c+20=8c
20=3c
c=20/3
c=6,6
D)
4/12=d/d+6
4(d+6)=4d
4d+24=4d
d=24
maap klo salah y.. :)