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Calculate the area of the composite figure above.

...
Calculate the area of the composite figure above.

Calculate the area of the composite figure above.

A.

6048 m\(^2\)

B.

3969 m\(^2\)

C.

4628 m\(^2\)

D.

5834 m\(^2\)

Correct answer is B

Area of the composite figure = Area of semi circle + Area of rectangle + Area of triangle

Area of semi circle = \(\frac{1}{2}\pi r^2 = \frac{1}{2}\times\pi\times\frac{d^2}{4} = \frac{1}{2}\times\frac{22}{7}\times\frac{42^2}{4} = 693 m^2\)

Area of rectangle = l x b = 42 x 60  =2520 m\(^2\)

Area of triangle = \(\frac{1}{2}\times b \times h = \frac{1}{2}\times 36 \times 42 = 756 m^2\)

∴ Area of the composite figure = 693 + 2520 + 756 = 3969 m\(^2\)