Answer:
<h2>
351.88 m</h2>
Step-by-step explanation:
Given,
D = diameter of semicircular part = 42 m
L = Length of straight part = 110 m
Now, let's find the perimeter:
= 2 ( length of semi-circle + length of straight part )

Plug the values

Calculate the product

Divide

Calculate the sum

Calculate

Hope this helps..
Best regards!!
Uhh we need a picture or some more info to help you with that one cheif
Answer:
True
Step-by-step explanation:
As modern science has advanced we're able to learn more about what makes up matter. Hope this helps :)