GRIDDED RESPONSE
Road Signs A stop sign is a regular octagon. The standard size has a 16.2-in. radius. What is the area of the stop sign to the nearest square inch?
Know | Need | Plan |
---|---|---|
The radius and the number of sides of the octagon | The apothem and the length of a side | Use trigonometric ratios to find the apothem and the length of a side |
The area of the stop sign is about