

HUBUNGAN SISI-SISI SEGITIGA SIKU-SIKU
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Mathematics
•
4th Grade
•
Hard

kelas a
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1
HUBUNGAN SISI-SISI SEGITIGA SIKU-SIKU

2
BILANGAN PANGKAT DUA
12 = 1 X 1 = 1
22 = 2 X 2 = 4
92 = 9 X 9 = 81
dan seterusnya
3
AKAR PANGKAT DUA
4 = 2 karena 2 x 2 = 4
9 = 3 karena 3 x 3 = 9
16 = 4 karena 4 x4 = 16
dan seterusnya
4
HUBUNGAN SISI-SISI SEGITIGA SIKU-SIKU
BC2 = AC2 + AB2
AC2 = BC2 - AB2
AB2 = BC2 - AC2
5
HUBUNGAN SISI-SISI SEGITIGA SIKU-SIKU
c2 = a2 + b2
a2 = c2 - b2
b2 = c2 - a2
6
Berapa panjang sisi AC?
AC2 = AB2 + BC2
AC2 = 122 + 52
AC2 = 144 + 25
AC2 = 169
AC = 169 = 13 (alasannya 13 x 13 = 169)
Jadi panjang sisi AC = 13 cm
7
Berapa cm panjang sisi KL?
KM2 = KL2 + LM2
KL2 = KM2 - LM2
KL2 = 132 - 122
KL2 = 132 - 122
KL2 = 169 - 144
KL2 = 25
KL = 25 = 5 (alasan 5 x 5 = 25) Jadi panjang KL adalah 5 cm
HUBUNGAN SISI-SISI SEGITIGA SIKU-SIKU

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