Diket:
AD = 6√2
DAB = 30°
Cara:
1.ADB = 180 - (90+30)
= 180 - 120
= 60°
2.DB=
BD : AD = 1 : 2
BD : 6√2 = 1 : 2
2BD = 6√2
BD = 6√2/2
BD = 3√2
3.CD=
CD : BD = √2 : 1
CD : 3√2 = √2 : 1
CD = 3√2.√2
CD = 3.2
CD = 6 cm (b)
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Diket:
AD = 6√2
DAB = 30°
Cara:
1.ADB = 180 - (90+30)
= 180 - 120
= 60°
2.DB=
BD : AD = 1 : 2
BD : 6√2 = 1 : 2
2BD = 6√2
BD = 6√2/2
BD = 3√2
3.CD=
CD : BD = √2 : 1
CD : 3√2 = √2 : 1
CD = 3√2.√2
CD = 3.2
CD = 6 cm (b)