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Sunday, January 22, 2012

Ashley's Textbook Questions

10. Kai uses an entire can of paint on a square backdrop for the school play. The label on can states that one can cover 27M2 of wall surface. Estimate the backdrop's side length to one decimal place.

Answer: 5.2 m

12. While shopping online, Ji Hun finds a square rug with an area of 11m2 . He needs to know if it will fit in his 4M x 5M bedroom.
A) Estimate the side length of the rug, to one decimal place.
√11= 3.3m
B) Will the rug fit? Explain.
Yes, it will fit because the side of the rug is smaller than the shorter side of the room.

19. Estimate the square root of 160 100. Explain how you determined your estimate.

Answer: 400


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