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<AOB = 180 - (55+55)
= 180 - 110
= 70
<ACB = 1/2 x <AOB
= 1/2 x 70
= 35
pj AC = 1/2 x tinggi segitiga OAB
16 cm = 1/2 tinggi segitiga OAB
tinggi segitiga OAB = 16 cm /2
= 8 cm
hipotenusa = ... - 8 - ...
= 3 - 4 - 5 (triple phytagoras)
(4 menjadi 8 >>> 4x2, jadi :)
= 3x2 - 4x2 - 5x2
= 6 - 8 - 10
= 10 (hipotenusa adlh suku ketiga dr triple phyt)
b).
gambar tidak diarsir.. bagaimana????