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490 in^2

Step-by-step explanation:

first the top one

first find the area of the squares

5 times 5=25 and there are two, so it 50

then the sides

8 times 5 is 40 and there are 4, so it is 160

160+50=210

the the bottom one

first the sides

2 times 10=20 and there 4, so it is 80

and then the top and the bottom

10 times 10=100 and there 2, so it is 200

200+80=280

and now add the both together

210+280=490

relating to or denoting a system of numbers and arithmetic based on the number ten, tenth parts, and powers of ten.

step-by-step explanation: