Question

Can someone plz help ne

Answer 1

38.5

Explanation:

The perimeter is found by

P = 2( l+w)

We know the width is 23, we are looking for the length

P = 2 (23+l)

The perimeter is 123

123= 2 (23+l)

Divide each side by 2

123/2 = 23+l

61.5 = 23+l

Subtract 23 from each side

61.5 -23 = l

38.5 = l

The length of AB = 38.5