Open Middle®
Directions: Using the digits 0 to 9 at most one time each, place a digit in each box so that the radius and angle measure result in the sector area is as close to 60 units2 as possible.
Hint
How can you determine which radii or angle measures would be unrealistic possibilities without calculating them?
Answer
The radius and angle measure that create a sector area that is as close to 60 units2 as possible is:
radius = 9 units
theta = 280°
sector area = 63π units2
radius = 9 units
theta = 280°
sector area = 63π units2
Source: Robert Kaplinsky
Either your directions or your answer are incorrect or unclear – the numbers given in your answer get you close to 60pi, not to 60, which is what the directions indicate is the goal.