Answer:
a,c,e,f
Step-by-step explanation:
scientific notations can only be less than 9
By laying on the short edge the frame of it is 6
35
since m and n are the midpoints of ab and ac resistively
then ,bc=2mn=16
since m and l are the midpoints of ba and bc respectively
then, ac =2mn =10
then,nc =1/2 × 10 =5
similary, mb=6
then ,perimeter=nc+mb+mn+bc=5+6+8+16=35
