Sheet # 69 Critical Thinking

Name: _____________________ Date_____________

The following is the diagram of the hockey rink.

1) What fraction of the total area of the hockey rink does the four face-off-circles represent? Round the area to the nearest thousand.

2) If the hockey rink was a square with the same perimeter, what would its dimensions be? What fraction of the total area of the hockey rink would the four face-off-circles represent? Round the area to the nearest thousand.

Answers for sheet # 69

Area of the rectangle: 85 x 178 = 15130 sq feet

Area of each circle: 3.14 x 15 x 15 = 706.5 sq. feet

area of 4 circles = 2826 sq. feet

Fraction: 2826/15130

Estimate to the nearest thousand

3000/15000

about 1/5

If it was a square

side of the square is = 131.5 feet

area of the square = 17292 sq feet

fraction = 2826/17292

round to the nearest thousand

3000/17000

about 1/6