A groundskeeper needs grass seed to cover a circular field. 150 feet in diameter. A store sells 50-pound bags of grass seed. One pound of grass seed covers about 60 square feet of field. What is the smallest number of bags the groundskeeper must buy to cover the circular field?

Step-by-step explanation:

Area of the field

Number of pounds

Number of bags required

Step-by-step explanation:

If you compare both figures, you would see that Example 1 shows an actual bisector, while Example 2 doesn't. Basically, you can deduct this by observing the simmetry around the bisector.

Remember that a bisector is a line which divide an angle in two equal parts, and the Example 2 doesn't show that. That's why Example 2 wasn't created by following the constitution steps correctly.

Therefore, Example 1 was created by following the constitution step correctly.