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The sector divided by the total angle measure of a circle multiplied by the area of the circle will yield the area of the sector.
<h3>Area of a sector</h3>The coloured portion of the circle is known as a sector. The formula for calculating the area of a sector is given as:
Area of a sector = θ/360 * πr²
where
θ is the central angle
πr² represents the area of a circle.
Therefore the best statement that explains the formula is expressed as the central angle measure of the sector divided by the total angle measure of a circle multiplied by the area of the circle will yield the area of the sector.
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The percentage change from the number of park visitors on Saturday
to the number of park visitors on Sunday is 37.5%
Step-by-step explanation:
The percentage of change from A to B is:
The percentage of change = × 100%
The manager of an amusement park recorded the number of visitors
to the park
- There were 800 visitors on Saturday
- There were 1,100 visitors on Sunday
We need to find the percentage change from the number of park
visitors on Saturday to the number of park visitors on Sunday
∵ The number of park visitors on Saturday = 800
∵ The number of park visitors on Sunday = 1,100
- Use the rule of the percentage change above
∴ The percentage change from the number of park visitors on
Saturday to the number of park visitors on Sunday =
× 100%
∴ The percentage of change = 37.5%
The percentage change from the number of park visitors on Saturday
to the number of park visitors on Sunday is 37.5%
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