Respuesta :
Answer:
the correct option is A) [tex]\angle 4 =40\degree[/tex]
Step-by-step explanation:
Given : - Measure of angle 1 is 30°, and the measure of angle 2 is 110° .
We need to find the the angle 4
Since, The sum of interior angles of triangle is [tex]180^{\circ}[/tex]
[tex]\angle 1 + \angle 2 + \angle 4 =180^{\circ}[/tex]
[tex]30^{\circ} +110^{\circ} + \angle 4 =180^{\circ}[/tex]
[tex]140^{\circ} + \angle 4 =180^{\circ}[/tex]
Subtract both the sides by [tex]140^{\circ}[/tex]
[tex]140^{\circ} + \angle 4 -140^{\circ} =180^{\circ} - 140^{\circ}[/tex]
[tex]\angle 4 =180^{\circ} - 140^{\circ}[/tex]
[tex]\angle 4 =40^{\circ}[/tex]
Hence, the correct option is A) [tex]\angle 4 =40^{\circ}[/tex]
Answer:
C. 140
Step-by-step explanation:
Add the two angles, sub from 180 to get 40, then sub 40 from 180 to get 140.
