General equation of a circle with centre (h, k) is given by:

$(x - h)^{2} + (y - k)^{2} = r^{2}$

Now, the origin is the centre and radius is 20, so substituting these points in yields:
$x^{2} + y^{2} = 20^{2}$
$x^{2} + y^{2} = 400$

4 0

3 years ago

Read 2 more answers

Hi can someone hep me pls and if you don't know the answer pls don't answer and pls don't send links I forgot to attach the pitc

lilavasa [31]

Answer:

Step-by-step explanation:

it doesn't really say what the "face" is, but i'll guess that it's the part marked in yellow? if that's the case then it's just 10 * 10 twice for each of the squares. Really you couldn't see that? :/ 200 is the answer

6 0

2 years ago

Read 2 more answers