Joanne had a rectangular piece of paper,36cm by 23.5cm.She cut out as many squares as possible from the paper.The side of each cut square is 5cm.
a)How many squares did Joanne cut out
b)What area of the paper was left?
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Question
Answer
sushi88
(a) Paper is 36cm x 23.5cm
On the 36-cm side, 35 is the maximum number divisible by 5 so 7 5-cm squares can be cut.
On the 23.5-cm side, 20 is the maximum number divisible by 5 so 4 5-cm squares can be cut.
So total 5-cm squares can be cut = 7 x 4 = 28
(b) Total area for the 28 5-cm squares = 5 x 5 x 28 = 700
Total area of paper = 36 x 23.5 = 846
Hence area of paper left = 846 – 700 = 146 cm2