The diagrams (not drawn to scale) show a rectangular cardboard J and a square K. Jack cut as many squares K as he could from rectangular cardboard J. The remaining part of the rectangular cardboard J is shown in Figure 1.
- What is the length of LM as shown in Figure 1?
- What is the greatest number of squares K that Jack could cut from a rectangular cardboard J?
(a)
Number of squares lengthwise
= 23 ÷ 3
= 7 r 2
Length of LM = 2 cm
(b)
Number of squares breadthwise
= 13 ÷ 3
= 4 r 1
Greatest number of squares
= 7 x 4
= 28
Answer(s): (a) 2 cm; (b) 28