Legnth are x and y
x+y=100
one is 16 more than other
x is 16 more than y
x=16+y
x=16+y therefor we can put 16+y for x
(16+y)+y=100
16+y+y=100
16+2y=100
minus 16 both sides
2y=84
divide by 2
y=42
sub back
x=16+y
x=16+42
x=58
the legnsh are
42 cm and 58cm
I can't see a square or a D given with your question.
But to find the perimeter you just have to add the surface of every side of the square.
Use photomath it’s an app on the app store
Answer:
work is shown and pictured
