Question

Itu cara yang nomor 5 gimana ya?

Answer 1

Luas = 300 cm²
t = 20 cm

Luas = 300
1/2 x a x t = 300
1/2 x a x 20 = 300
10 x a = 300
a = 300 / 10
a = 30 cm

Answer 2

2L= a x t
600= a x t
a = 600/20
a= 30