Here is a rectangle which has a width of x cm the length of the rectangle is 8cmlonger than the width of the rectangle .4 of these rectangles are used to make this 8 sided shape is 90cm work out the area of the 8 sided shape

Caleb and emily are standing 100 yards from each other. caleb looks up at a 45° angle to see a hot air balloon. emily looks up at a 60° angle to see the same hot air balloon. approximately how far is the hot air balloon off the ground? a)44.2 yd. b)63.4 yd. c)73.2 yd. d)89.7 yd.