Question

Please help!! write a detailed explanation of how you how got your answer!! Thank You!!!

Answer 1

Not sure if you still need the answer

But it's 120+20
`\pi`

Because the 3 boxes in the middle are cubes, all three are 10x10, and perimeter of a cube is each side added up.

All together it would be 40+40+40 which equals 120.

Then for the semi-circles, the perimeter formula is 1/2(
`\pi`d) d standing for diameter. Since we can tell that the diameter takes up 2 full cubes, we know that the diameter is 20. However since it's a semi-circle we cut that in half. So 10
`\pi`

10
`\pi`+10
`\pi`=20
`\pi`

So then your final answer is 120+ 20
`\pi`

I hope my answer was clear enough!