Question

b) The figure below is made of 3 squares with sides 5 cm. What is the perimeter of the
figure?


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Answer 1

Step-by-step explanation:

The side length of the squares is irrelevant, I will take it so be s . The figure has a perimeter involving all the sides of all the squares, so it is 20s . A square with perimeter 20s has side length 5s and area 25s2 . Meanwhile, each of the squares in the figure has area s2 and there are 5 of them, so the total area is 5s2 . Thus, the ratio of the five squares area to the new square area is 5s225s2=15 .

Answer 2

Answer:

The perimeter of a square is = 5cm

the perimeter of 3 squares is = 3x5 = 15 cm

the answer is 15 cm

Step-by-step explanation:

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