Answer:
978 in^2
Step-by-step explanation:
the area of the rectangle:
24in X 30in = 720 in^2
the area of the two similar triangles:
12 X 9 / 2 + 12 X 9 / 2 = 108 in^2
the area of the last triangle:
20 in X 15 in /2 = 150in^2
.
the total area is the sum of the areas:
720in^2 + 108in^2 + 150in^2 = 978in^2.
The awnser is Shari is using the same ratio as Mark's
1 times 108
I Hope this helps.
I believe 25 has to be added as
(x*5)^2 = x^2 + 10x + 25
