HUBUNGAN SISI-SISI SEGITIGA SIKU-SIKU

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Mathematics

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4th Grade

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Hard

kelas a

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HUBUNGAN SISI-SISI SEGITIGA SIKU-SIKU

BILANGAN PANGKAT DUA

1² = 1 X 1 = 1
2²= 2 X 2 = 4
9² = 9 X 9 = 81
dan seterusnya

AKAR PANGKAT DUA

$\sqrt{4}$ = 2 karena 2 x 2 = 4
$\sqrt{9}$ = 3 karena 3 x 3 = 9
$\sqrt{16}$ = 4 karena 4 x4 = 16
dan seterusnya

HUBUNGAN SISI-SISI SEGITIGA SIKU-SIKU

BC²= AC²+ AB²
AC²= BC²- AB²
AB²= BC²- AC²

HUBUNGAN SISI-SISI SEGITIGA SIKU-SIKU

c²= a²+ b²

a²= c²- b²

b²= c²- a²

Berapa panjang sisi AC?

AC²= AB²+ BC²
AC²= 12²+ 5²
AC²= 144+ 25
AC²= 169
AC = $\sqrt{169}$ = 13 (alasannya 13 x 13 = 169)
Jadi panjang sisi AC = 13 cm

Berapa cm panjang sisi KL?

KM²= KL²+ LM²
KL²= KM²- LM²
KL²= 13²- 12²
KL²= 13²- 12²
KL²= 169- 144
KL²= 25
KL = $\sqrt{25}$ = 5 (alasan 5 x 5 = 25) Jadi panjang KL adalah 5 cm

HUBUNGAN SISI-SISI SEGITIGA SIKU-SIKU

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