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enyata [817]
3 years ago
8

Carter needs to remove sod in his yard to build three flower beds. One bed will be a rectangle which measures 2.5 m by 6 m. Anot

her bed will be a semicircle which has a diameter of 6 m. The other bed will be a quarter circle with a radius of 4 m.
Mathematics
1 answer:
Kryger [21]3 years ago
5 0

Answer:

Area = 41.714m^2

Step-by-step explanation:

Given

Rectangle:

Length = 2.5m

Width = 6m

Semicircle

Diameter = 6m

Quarter circle

Radius = 4m

Required

The square meters of sod will Carter remove [Missing information]

To do this, we simply calculate the area of each flower beds.

For the rectangle:

A_1= Length * Width

A_1= 2.5m * 6m

A_1= 15m^2

For the semicircle

A_2 = \frac{1}{2}\pi r^2

Where

r=\frac{6}{2} = 3

So:

A_2 = \frac{1}{2} *\frac{22}{7} * 3^2

A_2 = \frac{1}{2} *\frac{22}{7} * 9

A_2 = \frac{1*22*9}{2*7}

A_2 = \frac{198}{14}

A_2 = 14.143

For the quarter circle

A_3 = \frac{1}{4}\pi r^2

A_3 = \frac{1}{4} * \frac{22}{7} * 4^2

A_3 = \frac{22}{7} * 4

A_3 = \frac{88}{7}

A_3 = 12.571

Total area is:

Area = A_1 + A_2 + A_3

Area = 15 + 14.143 + 12.571

Area = 41.714m^2

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