Ineed on these 4 questions me with this

For questions 5-7, you see how there's corners in which you can draw a line through? For example number 6 you can at up 10yd+8yd which would give you 18yd. After that, split that. by 6yd because of the 11yd on the side. Sorry if I don't make much sense Good luck

Between 3.5 and 4.0 and between 4.0 and 4.5. mark as brainliest