Question

Ab is a chord of a circle with radius r. If p is any point on the circle such that angle apb is a right angle, then ab is equal to

Answer 1

Answer:

Step-by-step explanation:

Answer 2

Given:

• A chord in a circle = AB
• The radius of the circle = r
• ∠APB = 90°

To find:

AB

Solution:

• It is given to us that, ∠APB = 90°.
• We know that a right angle is formed inside a circle when a triangle is inscribed inside a semicircle.
• Thus, the chord used to form the right angle has to be the diameter of the circle.
• Thus, chord AB is the diameter of the circle, that is, it is equal to 2r.