-- DEC is a right triangle.
-- DC is one side of the square = 10 cm
-- EC is half the side of the square = 5 cm
-- DE is the hypotenuse = square root of (5² + 10²) = √(125 cm²) .
<em>-- Truncated</em> to one decimal place, that's 11.1 cm.
<em>-- Rounded</em> to one decimal place, it's 11.2 cm.
It will. Be the third one
Answer :

step-by-step explanation:
From the question,
the diameter:

The radius :


Area of a circle is given as

By substitution,



Hence the area of the home is

I suppose that the expression you wanted to write is

. If so, then we have:
Answer:
0.2 coulombs is the answer