A radius and diameter are parts of a circle. Thus the reasons required in the question are given as;
i. A tangent is always perpendicular to the radius of a circle because they are always at a right angle.
ii. A line that is drawn from the end of a diameter of a circle to its circumference form a right angle because they are always perpendicular.
A circle is a figure that is bounded by a curved line which is called its circumference. Some of its parts are radius, diameter, chord, sector, etc.
- A diameter is a line from one point on the circumference of a circle to another through its center.
- A radius is a line drawn from the center of a circle to its circumference. Thus a radius is half of the diameter.
- A tangent is an external line drawn to meet the circumference of a circle at a point,
Thus the reasons required in the question are given as;
i. A tangent is always perpendicular to the radius of a circle because they are always at a right angle.
ii. A line that is drawn from the end of a diameter of a circle to its circumference form a right angle because they are always perpendicular.
For further clarifications on parts of a circle, visit: https://brainly.com/question/15618723
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