Please and thank you. Eduardo thinks of a number between 1 and 20 that has exactly 5 factors what number is he thinking of is my
1 answer:
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For any circle with Cartesian equation
,
we have that the centre of the circle is
, and the radius of the circle is 
.
So in the case that
,
we essentially have that
.
So the centre of the circle is
, and the radius is 
.
we have that the centre of the circle is
So in the case that
we essentially have that
So the centre of the circle is
Answer:
<ABC = (The central angle of a circle is twice any inscribed angle subtended by the same arc).
Step-by-step explanation:
From the diagram, ABC is an inscribed isosceles triangle. But the radius of the circle equals the length AC.
Join P to A and C to form an equilateral triangle. An equilateral triangle has equal sides and angles. So, the value of each interior angle of the equilateral triangle is;
Sum of angle in a triangle =
So that each interior angle =
=
The value of each interior angle of the triangle is . Thus, <APC =
.
⇒ <ABC = (The central angle of a circle is twice any inscribed angle subtended by the same arc.)