[tex] Diketahui \\ r = \frac{d}{2} = \frac{80 \: m}{2} = 40 \: m \\ \pi = 3,14 \\ \\ Ditanya = Luas \: lapangan \\ \\ Dijawab = Luas \: lapangan \\ \pi \times r \times r \\ 3,14 \times 40 \: m \times 40 \: m \\ 5.024 \: {m}^{2} [/tex]
Penjelasan dengan langkah-langkah:
Jari jari = ½·80 = 40 m
Luas :
= π × r × r
= 3,14 × 40 × 40
= 3,14 × 1.600
= 5.024 m²
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[tex] Diketahui \\ r = \frac{d}{2} = \frac{80 \: m}{2} = 40 \: m \\ \pi = 3,14 \\ \\ Ditanya = Luas \: lapangan \\ \\ Dijawab = Luas \: lapangan \\ \pi \times r \times r \\ 3,14 \times 40 \: m \times 40 \: m \\ 5.024 \: {m}^{2} [/tex]
Penjelasan dengan langkah-langkah:
Jari jari = ½·80 = 40 m
Luas :
= π × r × r
= 3,14 × 40 × 40
= 3,14 × 1.600
= 5.024 m²