In a square, the sum of the lengths of three sides is 45 and in a rectangle the difference between a length and a width is 5 in. if a width of the rectangle is the same as a side of the square, how long is a length of the rectangle?
Square: We know all sides of a squares are equal in length. s= the length of one side of the square. 45= s+s+s 45= 3s s=15 inches Each side of the square is 15 inches.
Rectangle: length(l)= ???? Width(w)= s = 15 inches
l -w= 5inches l- (15 inches)= 5 inches l = 20 inches
Answer: A length of the rectangle is 20 inches long.
