Which transformations preserve distance, and which ones preserve angle measure?

1. the wheeling bridge in west virginia is about 307 meters long. if you walk with a stride of about meter, about how many steps would it take you to cross this suspension bridge?

Point r divides in the ratio 1 : 5. if the coordinates of e and f are (4, 8) and (11, 4), respectively, what are the coordinates of r to two decimal places?

Perform the indicated operation and write the answer in the form a + bi. (-5 + 2) + (3 - 6i)