tulis masing-masing 2 contoh luas dan keliling segiempat dan segitiga
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Luas Segi Empat
no 1 :
= p × l
= 10 × 15
= 150 cm²
no 2 :
= p × l
= 7 × 9
= 63 cm²
Luas Segitiga
no 1 :
L = ½ × a × t
L = ½ × 8 × 6
L = 24 cm²
no 2 :
= ½ × a × t
= ½ × 6 × 9
= 27 cm²
Keliling Segi Empat
no 1 :
= s × s
= 8 × 8
= 64 cm
no 2 :
= s × s
= 6 × 6
= 36 cm
Keliling Segitiga
no 1 :
= AB + BC + AC
= 25 + 28 + 17
= 70 cm
no 2 :
= PQ + QR + PR
= 16 + 20 + 23
= 59 cm
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