btu jwb kak no 6.7. sama 10 plis plis

6. Besar sudut pukul 12.45

Pukul 12.45
jarum pendek di angka 12
jarum panjang di angka 9
[tex] \frac{12 - 9}{12} \times 360 \\ = \frac{3}{12} \times 360 \\ = 3 \times 30 \\ = {90}^{0} [/tex]

7. Diketahui : t = 12 m
a = 16 m
b = 16+8+8 = 32 m
Ditanya : L = ?
Dijawab :
L = ½(a + b) t
= ½(16 + 32) 12
= 24 x 12
= 288 m²

10.
Volume Kubus = r³
343 dm³ = r³
r =
[tex] \sqrt[3]{343} [/tex]
r = 7 dm
r = 70 cm