C# Area of Circle

Question

I am still a beginner and learned a few basics on variables, so I have managed to get the 1st part of the problem but cant find a way to solve all of them at once. Your help will be highly appreciated. xx

Answer 1

Please save your attempt on SL Playground and link here.

Answer 2

Your code should work for each input. You have to read the radius and calculate with it. Plesse try that.

Answer 3

Lawrance Tosa

You need to know what this line do.

Convert.ToDouble(t);

You didn't take input. Don't write Hard Code logic.

Answer 4

https://code.sololearn.com/c8a22A11a199/#cs hope you understand what I did there

Answer 5

I declared variable t and gave it a value of pi * radius, isn't that the input?

Answer 6

I used the Convert.ToDouble because the instructions said convert the inputted value to double

Answer 7

Lawrance Tosa review your previous lesson(s) wich should have teached how to get input from user, as a double value in 'radius' variable...

next, use it to compute area by doing PI*radius*radius (squared radius), but avoid using PI as self defined constant number with only 2 digits precision after dot, but rather use the builtin constant available in Math module ;)

Answer 8

Is it also possible to write the code with ()² or ^2?

I already know the writing goes like ... (radius * radius) but i am wondering if there is a more easy way of coding it ...

Thx ;)