Answer:
perimeter=42
Area=90
Explanation:
find the length of DEFG:
perimeter=a=b+a+b
28=10+b+10+b
28=20+2b
8=2b
4=b
finding the scale factor:
15/10=3/2
to find the perimeter of WXYZ:
the missing side:
=4x3/2
=6
perimeter=a+b+a+b
perimeter=15+6+15+6
perimeter=42
Area of WXYZ:
Area=bh
Area=15x6
Area=90