17-06-2018
Mathematics

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What is the area of the polygon below
A. 140 square units
B. 170 square units
C. 115 square units
D. 225 square units

What is the area of the polygon below A 140 square units B 170 square units C 115 square units D 225 square units class=

Respuesta :

17-06-2018

Look at the picture.
Area of a larger rectangle
[tex]A_1=10\cdot17=170\ u^2[/tex]

Area of a smaller rectangle
[tex]A_2=5\cdot6=30\ u^2[/tex]

Area of the polygon
[tex]A=A_1-A_2\\\\A=170-30=140\ u^2[/tex]
Answer: A. 140 square units

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