What is the distance of AB from the centre of the circle?
Given that AB = 12 cm, BC = 16 cm and AB is perpendicular to BC. Hence, AC is the diameter of the circle passing through points A, B and C. Hence, ABC is a right-angled triangle. 20) AD is the diameter of a circle and AB is a chord. If AD = 34 cm, AB = 30 cm, the distance of AB from the centre of the circle is Now, consider the figure.
What is the chord of the circle?
Line segment having its both the end points on the circumference of the circle is called the chord of the circle. Here, AB is the chord having its end points (A and B), which lie on the circumference of the circle.
What is Oa and diameter of a circle?
Here, OA is the radius of the circle having point O at the center of the circle, and point A on the circumference of the circle. A line segment which passes through the center of a circle, and whose end points lie on the circumference of the circle is called the Diameter of a circle.
What is the circumference of a circle called?
Circumference of a circle: The perimeter of a circle is called its circumference. The circumference of a circle of radius r is 2πr. Semicircle: The diameter of a circle divides the circle into two equal parts. Each part is called a semi-circle.
How do you find the chord of a circle with center O?
Two chords AB and AC of a circle with centre O are on the opposite sides of OA. Then ∠OAB = ∠OAC . Let AB and AC be the chord of the circle with center O on the opposite side of OA. Consider the triangles AOC and AOB:
What is the diameter of the circle ABAB and CD?
AB and CD are two parallel chords of a circle of lengths 10 cm and 4 cm respectively. If the chords lie on the same side of the centre and the distance between them is 3 cm, find the diameter of the circle.
How do you find the perpendicular bisector of a chord?
In the above circle, if the radius OB is perpendicular to the chord PQ then PA = AQ. Converse: The perpendicular bisector of a chord passes through the center of a circle. In the above circle, OA is the perpendicular bisector of the chord PQ and it passes through the center of the circle.