Answer:
x=5
y=4
Step-by-step explanation:
The sides with the 2 bars are equal so
7x-4 = 31
Add 4 to each side
7x-4+4 = 31+4
7x = 35
Divide each side by 7
7x/7 = 35/7
x =5
The sides with 3 bars are equal
4y+8 = 24
Subtract 8 from each side
4y+8-8 = 24-8
4y = 16
Divide by 4
4y/4 = 16/4
y =4
hello :
the perimeter is : p = 2(w + l )
p = 2(4.5+6) = 21 millim
Pyramid
