L = ½ × a × t
240 = ½ × a × 24
240 = 12 × a
a = 240/12
a = 20 cm
Cari panjang kaki segitiga (s)
s² = (½a)² + t²
s² = 10² + 24²
s² = 100 + 576
s² = 676
s = √676
s = 26 cm
Keliling
= 2s + a
= 2(26) + 20
= 52 + 20
= 72 cm (opsi D)
Jawaban:
jawaban ada pada gambar
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Cari alas Segitiga
L = ½ × a × t
240 = ½ × a × 24
240 = 12 × a
a = 240/12
a = 20 cm
Cari panjang kaki segitiga (s)
s² = (½a)² + t²
s² = 10² + 24²
s² = 100 + 576
s² = 676
s = √676
s = 26 cm
Keliling
= 2s + a
= 2(26) + 20
= 52 + 20
= 72 cm (opsi D)
Jawaban:
jawaban ada pada gambar