The perimeter P of a rectangle can be found using the formula P = 2(l+ w), where l represents the length
and w represents the width. Which equation represents
the width in terms of P and l ?
A. w = 2(P - l)
B. w = P- l/2
C. w = 2P - l
D. w = P/2 - l

the answer is b

Step-by-step explanation:

first, you divide the triangle in two, tô form a retangle triangle. after, using pythagoream theorem:

18^2 = 14^2 + (x/2)^2

(x^2/4) + 196 = 324

x^2/4 = 324 - 196

x^2/4 = 128

x^2 = 512

x = √512

x = √2^9

x = 16√2 cm

i hope i you.