17. A fridge magnet has an area of 54 mm2. Is 54 a perfect square? Use prime factorization to find the answer. 54 is not a perfect square because the equation is not equal on both sides.
19. The gym teacher told the students to run twice around the perimeter of the school field. The area of the square field is 28 900 m2. What distance did the students run?
the square root of 28900 is 170 The students ran 170m.
21. Kate is going to put a patio in her backyard. The patio stones she is using each have an area of 1 m2. She has created the rectangular design shown. a) What is the area of the patio? A=l x w A=14 x 4 A=56m2
b) What are the dimensions of another rectangular patio she could build with the same area?
56- 1, 2, 4, 7, 8, 14, 28, 56 -1 and 56 -2 and 28 -4 and 14 -7 and 8
c) Kate decides to make a patio with the same area but she wants it to be a square with whole number side lengths. Is this possible? Explain your reasoning. No, it is not possible because 56 is not a square number, therefore it is not a perfect square.