Answer:
B
Step-by-step explanation:
Formula: 4*((15*7)/2) + 15^2
This is the area of the four triangles combined (210 cm^2) plus the area of the square (225 cm^2)
For this case we have that by definition the area of a rectangle is given by:

Where
- <em>w: width of the rectangle
</em>
- <em>l: length of the rectangle
</em>
The area of the original rectangle is given by:

The area of the new rectangle is given by:

Therefore, the original area increases with a factor of 9.
Anwer:
the original area increases by a factor of 9.

Answer:
16
Step-by-step explanation:
6.48 + 9.34= 15.82 so when u round the number it 16 so the estimate is 16.