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Irina-Kira [14]
4 years ago
15

This is the last one please help me​

Mathematics
2 answers:
Salsk061 [2.6K]4 years ago
6 0

Answer:

Step-by-step explanation:

Area of shaded region = Area of Square - [ 2*area of semicircles + area of rectangle]

Square:

side = 9 m

Area = Side * side = 9*9 = 81 m²

Rectangle:

length = 10 m

width = 2 m

Area = length * width

       = 10 * 2

        = 20 m²

Semicircle:

diameter = 6 m

r = 6/2 = 3 m

Area of semicircle = πr²/2

Area of two semicircles = 2* πr²/2 = πr²

 = 3.14 * 3 *3

= 28.26 m²

Area of shaded region = 81 - [ 20 + 28.26]

                                       = 81 - 48.26

                                       = 32.74 m²

snow_lady [41]4 years ago
4 0
Are you finding area or perimeter of area then it’s 71 if it’s perimeter then it’s 54
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