WILL GIVE BRAINLIEST! Consider the following.

(a) For the figure above, find the sum of the measures of angles x, y, and z.
°

(b) For the figure above, explain why
∠a + ∠b = ∠x.

∠a + ∠
?
+ ∠c = 180°
∠a + ∠
?
+ ∠c − ∠c = 180° − ∠c
∠a + ∠
?
= 180° − ∠c

∠
?
+ ∠c = 180°
∠
?
+ ∠c − ∠c = 180° − ∠c
∠
?
= 180° − ∠c

∠a + ∠b = ∠x

Write a rule that describes the relationship between an exterior angle of a triangle and the opposite interior angles.
The sum of two interior angles in any triangle is
---Select---
the exterior angle of the third angle.

Use the rule to write an equation involving angles b, c, and y.