a. segitiga sama kaki
b. kll = x+2x-5+2x-5
40 = 5x-10
50 = 5x
10 = x
maka,
sisi 1 = x = 10
sisi 2 = sisi 3 = 2x-5 = 2(10)-5 = 20-5 = 15
b.40=2(2x-5)+x
40=4x-10+x
5x=50
x=10
KM=x=10
ML=KL=2x-5=2(10)-5=15
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a. segitiga sama kaki
b. kll = x+2x-5+2x-5
40 = 5x-10
50 = 5x
10 = x
maka,
sisi 1 = x = 10
sisi 2 = sisi 3 = 2x-5 = 2(10)-5 = 20-5 = 15
a. segitiga sama kaki
b.40=2(2x-5)+x
40=4x-10+x
5x=50
x=10
KM=x=10
ML=KL=2x-5=2(10)-5=15