The diagrams (not drawn to scale) show a rectangular cardboard A and a square B. Ben cut as many squares B as he could from rectangular cardboard A. The remaining part of the rectangular cardboard A is shown in Figure 1.
- What is the length of CD as shown in Figure 1?
- What is the greatest number of squares B that Ben could cut from a rectangular cardboard A?
(a)
Number of squares lengthwise
= 27 ÷ 4
= 6 r 3
Length of CD = 3 cm
(b)
Number of squares breadthwise
= 14 ÷ 4
= 3 r 2
Greatest number of squares
= 6 x 3
= 18
Answer(s): (a) 3 cm; (b) 18