Math Problem Statement
find the area of the shaded region (four decimal places)
Solution
To find the area of the shaded region, we'll start by calculating the area of the entire sector and then focus on the shaded part.
Step 1: Calculate the Area of the Whole Sector
The formula for the area of a sector is:
Given:
- Angle of the sector =
- Radius
Substitute the values into the formula:
So, the area of the whole sector is 82.1003 cm² (rounded to four decimal places).
Step 2: Determine the Area of the Shaded Region
Since the problem specifies finding the area of the shaded region, which appears to be part of the sector, the area we've just calculated is already for the specific sector. If the shaded part refers only to this sector, then the shaded region area is 82.1003 cm².
Would you like more details or have any questions about this? Here are some related questions that could help deepen your understanding:
- How do we calculate the area if the shaded region is a segment and not the entire sector?
- What changes if the angle of the sector is different?
- How do you find the perimeter of the sector?
- What happens to the sector area if the radius is doubled?
- How would you calculate the area of a sector if only the arc length is known?
Tip: Always double-check if the shaded region refers to a sector, a segment, or another specific part of a circle before finalizing your answer.
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Math Problem Analysis
Mathematical Concepts
Geometry
Circle Sector Area
Formulas
Area of a sector formula: (θ/360) × πr²
Theorems
-
Suitable Grade Level
Grades 9-12
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