tolong dijawab yahh plisss

yang di tanya apanya ya

Bangun Datar

Persegi
L = s × s

Segitiga
L = ½ × a × t

Nomor 8
Persegi
s = 36 cm

L = s × s
L = 36 cm × 36 cm
L = 1.296 cm²

Segitiga
a = 28 cm + 36 cm = 64 cm
t = 60 cm – 36 cm = 24 cm

L = ½ × a × t
L = ½ × 64 cm × 24 cm
L = 768 cm²

Luas bangun segi banyak
L = 1.296 cm² + 768 cm²
L = 2.064 cm²
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Nomor 9
Persegi
s = 26 cm

L = s × s
L = 26 cm × 26 cm
L = 676 cm²

Segitiga
a = 9 cm + 26 cm + 9 cm = 44 cm
t = 82 cm – 26 cm = 56 cm

L = ½ × a × t
L = ½ × 44 cm × 56 cm
L = 22 cm × 56 cm
L = 1.232 cm²

Luas bangun segi banyak
L = 676 cm² + 1.232 cm²
L = 1.908 cm²