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Mapel : MatematikaMateri : Bangun Datar
Pembahasan
Kita cari sisi sisi yang belum diketahui dulu
(i)
h =√(8² + 6²)
=√(64 + 36)
=√100
= 10 cm
(ii)
s =√(26² - 10²)
=√(676 - 100)
=√576
= 24 cm
Maka,
K segitiga
= jumlah semua sisinya
= 8 cm + 6 cm + 24 cm + 26 cm
= 64 cm ==> OPSI C
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