If a diameter intersects a chord of a circle at a perpendicular, what conclusion can be made? The diameter and the chord are congruent. The diameter is twice as long as the chord. The chord is bisected. The diameter is bisected.

When a diameter intersects a chord of a circle at a right angle, the chord is bisected at that point of intersection. This means that both segments of the chord are equal in length, which is a neat little property that makes problem-solving with circles pretty straightforward! In real-world applications, this principle can be seen in various design elements, such as bridges and roundabouts. Engineers use circle properties while designing structures to ensure symmetry and balance, creating safe and aesthetically pleasing designs that stand the test of time.