-------------------------------------------------- Define length and width -------------------------------------------------- Let x be the width width = x Length = 2x + 4
-------------------------------------------------- Formula -------------------------------------------------- Perimeter = 2(length + width)
-------------------------------------------------- Find Length and width -------------------------------------------------- 62 = 2(2x + 4 + x) 62 = 2(3x + 4) <em> ← combine like terms </em> 62 = 6x + 8 <em>← remove bracket </em> 62 - 8 = 6x <em>← minus 8 on both sides </em> 6x = 54 <em> ← swap sides </em> x = 54 ÷ 6 <em>← divide by 6 on both sides</em> <em>x = 9 m</em>
-------------------------------------------------- Find Length and Width -------------------------------------------------- Width = x = 9 m Length = 2x + 4 = 2(9) + 4 = 22 m