Suppose I choose two numbers from the set {1, 2, 3,... 100}. How many have an even sum? Show all work.
Angles in Circles
Angles within a circle are feasible to create with the help of different properties of the circle such as radii, tangents, and chords. The radius is the distance from the center of the circle to the circumference of the circle. A tangent is a line made perpendicular to the radius through its endpoint placed on the circle as well as the line drawn at right angles to a tangent across the point of contact when the circle passes through the center of the circle. The chord is a line segment with its endpoints on the circle. A secant line or secant is the infinite extension of the chord.
Arcs in Circles
A circular arc is the arc of a circle formed by two distinct points. It is a section or segment of the circumference of a circle. A straight line passing through the center connecting the two distinct ends of the arc is termed a semi-circular arc.
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Question 1:
According to the given information if two numbers are chosen from the given set, it is required to find how many will have even sum. Given set
Note that the sum of two numbers is even if they are both either even or both are odd. The sum of one odd number and one even number is odd.
Now, find the numbers of even numbers and odd numbers in the given set. Even numbers in the set are:
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