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miskamm [114]
2 years ago
12

This composite figure is created by placing a sector of a circle on a rectangle. What is the area of this composite figure? Show

your work.

Mathematics
2 answers:
Soloha48 [4]2 years ago
8 0

Answer:

area of the figure: 29.92 m²

formula's:

  • area of rectangle: length * width
  • area of sector: ∅/360 * πr²

solving steps:

area of rectangle + area of sector

5.5 * 4 + 30/360 * π(5.5)²

22 + 7.919

29.92 m²

7nadin3 [17]2 years ago
5 0

Answer:

Calculate the area of the sector and the area of the rectangle separately, then add them together to determine the area of the composite figure.

<u>Rectangle</u>

Area of a rectangle = width × length

                                = 4 × 5.5

                                = 22 m²

<u>Sector</u>

<u />\textsf{area of sector}=\dfrac{\theta\pi r^2}{360} \textsf{ (when } \theta \textsf{ is measured in degrees)}

                     =\dfrac{30 \cdot\pi\cdot5.5^2}{360}

                     =\dfrac{121}{48}\pi  \textsf{ m}^2

<u>Total area</u>

total area = area of rectangle + area of sector

                =22 +\dfrac{121}{48}\pi

                = 29.91943148...

                = 29.9 m² (nearest tenth)

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