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student 1

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## Homework Statement

An automobile windshild has dimensions of 60 cm by 150 cm. What minimum tolerance in mm is needed to prevent the windshield from breaking if the temperature changes by 200 degrees Farenheight? (The linear expansion coeffecient of galss is 9 x 10[tex]^{}-6[/tex]

(C)

^{-1}

## Homework Equations

area expansion = Ai(Area expansion coefficient)(Change in Temp)

Area expansion coefficient=2(Linear expansion coefficient)

## The Attempt at a Solution

I found my area to be 900,000 mm

^{2}The change in temperature 111 Degrees Celsius. but I'm not getting the right answer when I multiply 2(Linear expansion coefficient)

I'm getting a huge number for my final answer when it should be really small.