Berapa luas kebun yang tidak dibuat kolam?

<p>Jawaban yang tepat adalah&nbsp;<strong> 896 m²</strong></p><p>&nbsp;</p><p>&nbsp;</p><p>Pembahasan :</p><p><strong>Luas Kebun</strong></p><p>Tanah berbentuk trapesium</p><p>L₁ = [(20 + 50) x 30]/2</p><p>&nbsp; &nbsp; = [(70 x 30]/2</p><p>&nbsp; &nbsp; = 1.050 m²</p><p>Luas tanahnya adalah 1.050 m²</p><p>&nbsp;</p><p><strong>Luas Kolam</strong></p><p>Diameter (d) = 14 m</p><p>Jari-jari (r) = 14/2 = 7 m</p><p>𝞹 = 22/7</p><p>L₂ = 𝞹 x r x r</p><p>&nbsp; &nbsp; = 22/7 x 7 x 7</p><p>&nbsp; &nbsp; = 154 m²</p><p>&nbsp;</p><p>Luas Kebun yang tidak dibuat kolam = L₁ - L₂</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;= 1.050 - 154</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;=<strong> 896 m²</strong></p>