Question

Tolong di bantu ya,nmr 10 :)

Answer 1

K = 2(p+l)
94 = 2 (5x+2+2x+3) (kedua sisi dibagi 2)
47 = 7x+5
7x = 47-5
7x = 42
x = 42/7
x = 6

panjang = 5x+2 = 5.6+2 = 32 cm
lebar = 2x+3 = 2.6+3 = 15 cm

Answer 2

Kel persegi pjg= 2p+2l
94cm=2(5x+2)+2(2x+3)
94cm=10x+4+4x+6
94=10x+4x+4+6
-14x=10-94
x=84/14
=6
p=5.6+2=32
l=2.6+3=15