Answer:
168cmsqured
Step-by-step explanation:
as for me,15 acts as the lower part of the trapezium while 13 acts as the upper part of the trapezium .so since I know the measurements of the both sides I can easily calculate the area use using the formula indicated in the image.hope it helps
15
48
x/8+3=9
x/8=9-3
x/8=6
x=6*8
x=48
17. yes - 9.95
18. yes - 9.45
19. no - 10.01
20. no 10.01
21. yes 9.86