Please answer ASAP this is due tomorrow

2100 cm

Step-by-step explanation:

Since a=20 cm, b=25 cm, c=28 cm, we can calculate the area by calculating the separate squares and triangles and then adding them together.

To find the square's areas we can use the equation A=LxW

A=20x25

A=500

Since there are two identical squares add them together.

500+500=1000

Next, calculate the area for the bottom square.

A=25x28

A=700

And then add the two surface areas together.

1000+700=1700

Finally, calculate the area of the two triangles by adding them together to create one square, and then calculating their area.

A=20x20

A=400

Since we know the final surface area we can add them all together to get our answer of 2100 cm.

400+1700=2100

answer is:

1.75 pounds