Freddyxgutierrez Freddyxgutierrez

14-08-2017
Mathematics

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Geometry- Calculating the area of the following shapes. Please explain.

Geometry Calculating the area of the following shapes Please explain class=

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choixongdong choixongdong

14-08-2017

1.
area of big rectangle = 12 x 15 = 180
area of triangle = 1/2 (6)(4) = 12

Area of figure = 180 - 2(12) = 156 m^2

2.

Area of rectangle = 13 x 18 = 234
Area of semi-circle = 1/2 pi r^2= 254.47 / 2 = 127.235

Area of figure = 234 + 127.235 = 364.235 m^2

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