6/RS = 8/12
RS = 12 × 6 ÷ 8
RS = 72 ÷ 8
RS = 9 cm
6/9 = 20/PQ
PQ = 20 × 9 ÷ 6
PQ = 180 ÷ 6
PQ = 30 cm
Luas PQRS
= (a+b) × t ÷ 2
= (9+30) × 12 ÷ 2
= 39 × 12 ÷ 2
= 234 cm^2 (C)
Jawab:
Penjelasan dengan langkah-langkah:
" Life is not a problem to be solved but a reality to be experienced! "
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6/RS = 8/12
RS = 12 × 6 ÷ 8
RS = 72 ÷ 8
RS = 9 cm
6/9 = 20/PQ
PQ = 20 × 9 ÷ 6
PQ = 180 ÷ 6
PQ = 30 cm
Luas PQRS
= (a+b) × t ÷ 2
= (9+30) × 12 ÷ 2
= 39 × 12 ÷ 2
= 234 cm^2 (C)
Jawab:
Penjelasan dengan langkah-langkah: