A railroad crossing sign is a circle with a diameter of 30 in. The manufacturer makes 6 railroad crossing signs from the sheet of aluminum by arranging the signs as shown. About ____ in2 of aluminum is left over after the signs have been made.

Question

anonymous · Answer

attachment

anonymous · Answer

Find the area of the sheet (I don't see a picture of it}  Find the area of the 6 circles.  pi*15 inches squared, times 6 for the 6 circles.  Subract

anonymous · Answer

I just posted a picture!

anonymous · Answer

So the area would be 5400, and the area of the six circles is 707?

anonymous · Answer

And 707*6 is 4242? Am I correct?

anonymous · Answer

What do I subtact?

anonymous · Answer

5400-4242

anonymous · Answer

1158 inches squared of aluminum would be left

anonymous · Answer

thank you!

anonymous · Answer

If you use $$ \pi=3.14$$
The areas of the six circles i\
$$
6(3.14) (15)^2= 4239\
5400- 4239=1161
$$

anonymous · Answer

Thanks for the confirmation eliassaab!