Hello, can you help me? “answered with an explanation” Thanks You. ​

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Hello, can you help me? “answered with an explanation” Thanks You. ​

بِسْـــمِ اللَّهِ الرَّحْمَــنِ الرَّحِيْمِ

Diketahui:

Trapesium

  • a = 16 cm
  • b = 21 cm
  • t = 12 cm

Segitiga

  • a = 16 cm
  • t = 12 cm

Ditanyakan:

  • L gabungan = … cm²?

Penyelesaian:

L gabungan = L trapesium + L segitiga

L gabungan = (½(a + b) × t) + (½ × a × t)

L gabungan = (½ (16 + 21) × 12) + (½ × 16 × 12)

L gabungan = (½ × 37 × 12) + (8 × 12)

L gabungan = 222 + 96

L gabungan = 318 cm²

وَاللَّهُ عَالَمُ بِاالصَّوَافَ

B. 318 cm²

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● Luas Segitiga + Luas Trapesium

= (½ × (a × t)) + (½ × ((a + b) × t))

= (½ × (16 × 12)) + (½ × ((16 + 21) × 12)

= (½ × 192) + (½ × (37 × 12))

= 96 + (½ × 444)

= 96 + 222

= 318 cm²

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