4. if (mangle8 = 80^{circ}), then (mangle6=)? a. (72^{circ}) b. (80^{ci… | Sovi AI

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$4. if (mangle8 = 80^{circ}), then (mangle6=)? a. (72^{circ}) b. (80^{ci…$

Question

if (mangle8 = 80^{circ}), then (mangle6=)? a. (72^{circ}) b. (80^{circ}) c. (100^{circ}) d. (108^{circ})

Explanation:

Step1: Identify angle - pair relationship

$\angle8$ and $\angle6$ are vertical angles.

Step2: Apply vertical - angle property

Vertical angles are congruent. So if $m\angle8 = 80^{\circ}$, then $m\angle6=m\angle8$.

Answer:

B. $80^{\circ}$