Jawaban:
QR = b / c
Cos 60° = b / 30
½ = b / 30
2b = 30
b = 30 : 2
b = 15 cm
QR = 15 cm
QR= PQ
maka panjang PQ = 15 cm
QS = a / c
Sin 30 = a / 30
½ = a / 30
2a = 30
a = 30 : 2
a = 15
maka panjang QS = 15 cm
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Verified answer
Jawaban:
QR = b / c
Cos 60° = b / 30
½ = b / 30
2b = 30
b = 30 : 2
b = 15 cm
QR = 15 cm
QR= PQ
maka panjang PQ = 15 cm
QS = a / c
Sin 30 = a / 30
½ = a / 30
2a = 30
a = 30 : 2
a = 15
maka panjang QS = 15 cm