Find the sum of the interior angle measures of a regular polygon
with 17 sides

Is δ pmr similar to δ smn ? if so, which postulate or theorem proves these two triangles are similar?

Classify the following triangle check all that apply

10 ! a train starts from grand city and travels toward belleville 388 miles away. at the same time, a train starts from belleville and runs at the rate of 47 miles per hour toward grand city. they pass each other 4 hours later. find the rate of the train from grand city.