Tentukan luas dan panjang garis BD
Note : pakai cara jangan ngasal
Note : pakai cara jangan ngasal
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Penjelasan dengan langkah-langkah:
BC =√15²+8²
BC =√225 + 64
BC =√289
BC = 17 cm
Luas Abcd
= 2 × L∆Adc
= 2 × 1/2 × a × t
= 2 × 1/2 × 8 × 15
= 8 × 15
= 120 cm²
panjang BD
= 120 ÷ 17
= 7,05
panjang BD
= 2 × 7,05
= 14,11 cm