What is the perimeter of each of the following figures? What do you infer from the answers?

What is the perimeter of the following figure?

What is the perimeter of the following figures?

What will be the semi - perimeter of the following figure ?

What do you infer from the term manoxylic?

What do you infer from the term pycnoxylic?

What do you observe from the below figure ?

Comment on the similarity between the wing of a cockroach and the wing of a bird. What do you infer from the above, with reference to evolution?