Answer:i think its 80 cm
Step-by-step explanation:
so for question 2 find the area of the rectangle first:

then you find the area of the triangles:


Add up all the answers:

and for question 3, part A, you just find the area of the 2 boxes and multiply:



so the surface area of the box is 90 square inches therefore the paint covered 90 square inches. For part B, just add up the length of the thick black lines:

How these helped have a good day
What is the question we're supposed to be answering?