kesebangunan
jajar genjang ABCD sebangun jajar genjang APQR
BC/DC = PQ/RQ = t1/t2 = 20/25 = 4/5
Keliling APQR = 36 cm
2(4x + 5x) = 36
2 × 9x = 36
x = 36/18
x = 2
RQ = 5x = 10 cm
PQ = 4x = 8 cm
perbandingan luas ABCD dan APQR
= (a1 × t1) : (a2 × t2)
= (a1/a2) × (t1/t2)
= (DC/RQ) × 4/5
= 25/10 × 4/5
= 100/50
= 2 : 1
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kesebangunan
jajar genjang ABCD sebangun jajar genjang APQR
BC/DC = PQ/RQ = t1/t2 = 20/25 = 4/5
Keliling APQR = 36 cm
2(4x + 5x) = 36
2 × 9x = 36
x = 36/18
x = 2
RQ = 5x = 10 cm
PQ = 4x = 8 cm
perbandingan luas ABCD dan APQR
= (a1 × t1) : (a2 × t2)
= (a1/a2) × (t1/t2)
= (DC/RQ) × 4/5
= 25/10 × 4/5
= 100/50
= 2 : 1