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52 = 4s
s = 52/4
s = 13
13 = √(d1/2)² + (d2/2)²
13 = √(24/2)² + (d2/2)²
13 = √12² + (d2/2)²
d2/2 = √13²-12²
d2/2 = √169-144
d2/2 = √25
d2/2 = 5
d2 = 5 x 2
d2 = 10
luas = d1 x d2 x 1/2
luas = 24 x 10 x 1/2
luas = 240 x 1/2
luas = 120 cm²
52 = 4.s
s = 52 : 4
= 13 ---> d2
pakai rumus phytagoras , 13 = sisi miring , stgh dari d1 = 12
maka, (13^2) - (12^2) = 125 . akar dari 125 adalah 5
maka, L = 1/2 . d1 . d2
= 1/2 . 24 . 10
= 120 cm2