3 1/3, 7-3 2/3=3 1/3, use absolute value
Total surface area equals area of 5 rectangular faces + 2 pentagonal faces
Area of 5 rectangular faces


Area of 2 pentagonal faces can be found by drawing 5 isosceles triangles with height as shown in the diagram and multiply the result by 2.


The toatal surface area is

The correct answer is A
Step-by-step explanation:
you said eighteen ponds do you mean pounds
The answer is k=-1.........