Question

._.

1. 1 + 2 + 3 + 4 + 5.....+ 99 =

p = 12 cm
l = 6 cm
t = 8 cm
volume?

suka kaka r._

Answer 1

Nomor 1Diketahui:a = 1b = 2 - 1 = 1Ditanya:s99Penyelesaian:Sn = n/2(2a + (n - 1)b)S99 = 99/2(2(1) + (99-1)1)S99 = 49,5(2 + 98)S99 = 49,5(100)S99 = 4.950[tex]~[/tex]Nomor 2V = p × l × tV = 12 cm × 6 cm × 8 cmV = 12 cm × 48 cm²V = 576 cm³