6. The mARC AB is 520⁰. The correct option is option B.
7. The mARC AEC is 284⁰. The correct option is option C.
The Breakdown
An angle is a geometric figure formed by two rays or line segments that share a common endpoint called the vertex. The rays or line segments that form the angle are known as the sides of the angle.
Angles are typically measured in degrees (°) or radians (rad). In a degree measurement, a full circle is divided into 360 equal parts, with each part representing 1 degree. A right angle, which is commonly seen as a square corner, measures 90 degrees. Angles less than 90 degrees are called acute angles, while angles greater than 90 degrees but less than 180 degrees are called obtuse angles.