Luas persegi panjang
= panjang × lebar
= 666 cm²
Luas trapesium
[tex] \tt = \frac{(37 + 14) \times 18}{2} = \frac{51 \times 18}{2} = 459 \: cm {}^{2} \\ [/tex]
Luas arsiran
= 666 - 459
= 207 cm² (C)
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Penyelesaian:
Luas persegi panjang
= panjang × lebar
= 666 cm²
Luas trapesium
[tex] \tt = \frac{(37 + 14) \times 18}{2} = \frac{51 \times 18}{2} = 459 \: cm {}^{2} \\ [/tex]
Luas arsiran
= 666 - 459
= 207 cm² (C)