$a ^ { 2 } = b ^ { 2 } + c ^ { 2 }$ A piece of copper bus bar is 0.75 millimeter by 100 millimeters in cross section. What is the cross-sectional area in square centimeters? Carry the answer to two decimal places.

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The Answer of $a ^ { 2 } = b ^ { 2 } + c ^ { 2 }$ A piece of copper bus bar is 0.75 millimeter by 100 millimeters in cross section. What is the cross-sectional area in square centimeters? Carry the answer to two decimal places.

a2=b2+c2a ^ { 2 } = b ^ { 2 } + c ^ { 2 }a2=b2+c2

$a ^ { 2 } = b ^ { 2 } + c ^ { 2 }$