Answer:
it represents 0.64 because there are 100 parts in total and 64 parts are shaded which represents 64/100 which is equivalent to 0.64
-8-(-5)/8-5 = -3/3 = -1
Hi,
Perimeter AEDCB=3*10+15+20=65 (units)
Ratio of the similitude r*15=21==>r=21/15=1.4
Perimeter RQPTS=65*1.4=91(units)
