Soal di foto, nyasal report​

5) p + ( 4+ p) = 16

2p + 4 = 16

2p = 16-4

2p = 12

p = 6

6) keliling = 2p + 2l

54 = 2(3x + 5) + 2(x+6)

54 = 6x + 10 + 2x + 12

54 = 8x + 22

54-22 = 8x

32 = 8x

x = 4

Jadi P = (3x +5) = (3×4) + 5 = 12 + 5 = 17

l = ( x + 6) = 4 + 6 = 10

Panjang = 17cm dan lebar = 10 cm