Scribepost for December 7 , 2009 .

Yesterday we had to do questions from the text book on page 85 questions 1 to 27 .

question # 18

A floor mat for gymnastics is a square with a side length of 14m . What is the area of the floor mat in square meters ?

- The area is 196 m2 .

question # 22

The world's largest city square is Tianamen square in Beijing , China . It has an area of 396 900 m2 .

a) What are the dimensions of the square ?

- 630 m by 630 m / side length .

b) If the square had dimensions of 629 m by 629 m , what would be the area ?

- 395 641 m2

c) If the square had an area less than 394 000 m2 and greater than 386 000 m2 , What are all of the possible whole number dimensions that it could have ?

- 622.0 and 626.0