The diagrams (not drawn to scale) show a rectangular cardboard U and a square V. Fred cut as many squares V as he could from rectangular cardboard U. The remaining part of the rectangular cardboard U is shown in Figure 1.
- What is the length of WX as shown in Figure 1?
- What is the greatest number of squares V that Fred could cut from a rectangular cardboard U?
(a)
Number of squares lengthwise
= 31 ÷ 4
= 7 r 3
Length of WX = 3 cm
(b)
Number of squares breadthwise
= 18 ÷ 4
= 4 r 2
Greatest number of squares
= 7 x 4
= 28
Answer(s): (a) 3 cm; (b) 28