City Scholarship Practice Exam 2026 – Complete Test Prep

When a point is on a circle and you look at the angle formed by lines from that point to the ends of a diameter, the angle is a right angle. This is because the inscribed angle measure equals half the measure of its intercepted arc. The diameter subtends a 180-degree arc, so half of that is 90 degrees. Therefore the angle is a right angle. The other options describe angles that are either smaller than a right angle (acute), larger than a right angle but less than a straight line (obtuse), or exactly a straight angle, which don’t occur for this situation.