The angle m∠A can be represented as follows:
- m∠A = 47°
- m∠A = 164 - 70 / 2
How to find the angle in a circle?
The above circle, a secant and a tangent intersect outside the circle.
A secant is a straight line that intersects a circle in two points.
A tangent is a line that never enters the circle's interior.
Therefore, when a secant and a tangent intersect, the following rules applies:
m∠A = 1 / 2 (BD - BC)
m∠A = 1 / 2 (164 - 70)
m∠A = 1 / 2 (94)
m∠A = 47 degrees.
Therefore, the angle m∠A can be represented as follows:
- m∠A = 47°
- m∠A = 164 - 70 / 2
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