What is the missing step in the given proof? Statement: m∠4 = m∠15 Reason: Substitution Property of Equality Statement: m∠4 + m∠
8 = 180° Reason: definition of supplementary angles Statement: ∠7 and ∠8 are supplementary. Reason: Linear Pair Theorem Statement: m∠4 = m∠16 Reason: Transitive Property of Equality Statement: ∠15 and ∠8 are supplementary. Reason: Transitive Property of Equality
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Answer:
°
Step-by-step explanation:
"Theorem 9-13: The measure of an angle formed by two secants, two tangents, or a secant and a tangent drawn from a point outside the circle is equal to half the difference of the measures of the intercepted arcs."
Basically no matter what other circle, secant or tangent you get, you just use the formula
If you need the outer angle, just put the other angles in and solve
If you need the far or near point angle, re-arrange the formula to get that value.