turkey-yks 2021 Q28

turkey-yks · Other · yks-ayt Sine and Cosine Rules Find an angle using the cosine rule
Ali places the sharp end of a compass on a point on paper and, without changing the compass opening, draws a circle with a diameter of 21 cm.
Given that the lengths of the compass legs are 7.5 and 12 cm, what is the measure of the angle between the compass legs in degrees?
A) 30
B) 45
C) 60
D) 90
E) 120
Ali places the sharp end of a compass on a point on paper and, without changing the compass opening, draws a circle with a diameter of 21 cm.

Given that the lengths of the compass legs are 7.5 and 12 cm, what is the measure of the angle between the compass legs in degrees?\\
A) 30\\
B) 45\\
C) 60\\
D) 90\\
E) 120