Answer:

Explanation:
Since
is a diameter, arc 
Given that
is a subtended central angle by two diameters,
.
Using the rule of arcs,
→



Answer:
area of circle=πr²=3.14×5²=78.5unit²
I assume you mean divide using the conjugate to rationalize the denominator and express the result in standard rectangular form.

142628281991919182726(35262627282
Your answer would be 24/25