Lenysaputra
No.3 K = 2 x ( p + l ) 10= 2 x (p + l ) 5 = p + l Perhatikan gambar! Bila panjang sisi yg pendek = l, dan sisi panjang = p maka p = 4 l Masukkan ke 5 = p + l 5 = 4 l + l 5 = 5 l l = 1 Jadi ketemu 5 = p + 1 >>>> p = 4 Keliling ABCD = 2 x ( 4 + (4+1)) = 2 x 9 = 18
K = 2 x ( p + l )
10= 2 x (p + l )
5 = p + l
Perhatikan gambar! Bila panjang sisi yg pendek = l, dan sisi panjang = p maka p = 4 l
Masukkan ke
5 = p + l
5 = 4 l + l
5 = 5 l
l = 1
Jadi ketemu 5 = p + 1 >>>> p = 4
Keliling ABCD = 2 x ( 4 + (4+1))
= 2 x 9 = 18