The diagrams (not drawn to scale) show a rectangular cardboard Q and a square R. Mark cut as many squares R as he could from rectangular cardboard Q. The remaining part of the rectangular cardboard Q is shown in Figure 1.
- What is the length of ST as shown in Figure 1?
- What is the greatest number of squares R that Mark could cut from a rectangular cardboard Q?
(a)
Number of squares lengthwise
= 27 ÷ 4
= 6 r 3
Length of ST = 3 cm
(b)
Number of squares breadthwise
= 18 ÷ 4
= 4 r 2
Greatest number of squares
= 6 x 4
= 24
Answer(s): (a) 3 cm; (b) 24