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Verified answer
Bangun Datar Persegi ABCDmisal rusuk persegi = x
AB = AD = x
Luas ABCD = x²
AP : PD = 2 : 1 --> AP =2/3 x dan PD = 1/3 x
AQ : QB = 1 : 3 --> AQ = 1/4 x dan QB = 3/4 x
T titik tengah CD --> CT : TD = 1 : 1 --> CT = 1/2 x dan TD = 1/2 x
lihat Δ PDT
Luas Δ PDT = 1/2 (PD)( DT) = 1/2 (1/3 x)(1/2 x) = 1/12 x²
lihat ΔQBC
Luas ΔQBC = 1/2 (QB)(BC) = 1/2 (3/4x)(x) = 3/8 x²
.
luas AQCTP = Luas ABCD - Luas ΔPDT - ΔQBC
Luang AQCTP = x² - 1/12 x² - 3/8 x²= 13/24 x²
perbandingan luas AQCTP dengan luas ABCD =
= 13/24 x² : x²
= 13/24 : 1
= 13 : 24